2018년 좋은책신사고 쎈 연산 초등 수학 9권 ( 5 - 1 ) 답지

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2018년 좋은책신사고 쎈 연산 초등 수학 9권 ( 5 - 1 ).pdf 다운로드 | 답지저장소

1단계 최대공약수와 최소공배수 …………………………………………………………………………… 02 2단계 약분과 통분 ………………………………………………………………………………………………………………………………………………………………………………… 03 3단계 분수의 덧셈과 뺄셈 ………………………………………………………………………………………………………………………… 05 4단계 다각형의 둘레와 넓이 ………………………………………………………………………………………………………… 13 5단계 분수의 곱셈 (1) …………………………………………………………………………………………………………………………………………………………… 15 6단계 분수의 곱셈 (2) …………………………………………………………………………………………………………………………………………………………… 20 216 센연산9권_정답.indd 1 15. 10. 23. 오후 2:35 1단계 최대공약수와 최소공배수 01일차 1. 최대공약수와 최소공배수 ① 008~009쪽 / / /  2\3 2\5 3\5 /  3\3 / 3 /  /  / 2 2\3 / / 2\2\5 5 3\2\3=18 /  2\5\3=30 / 5\3\2\2=60 2\2\3 2\2 /  2\2\3=12 2\2=4 /  / 2\3\3 2\3\5 2\3=6 / / 2\3\3\5=90 / /  5\5 2\2\5 /  /  5 3\7 3\5 /  3 2\2\2\3 2\2\5 /  2\2\2\3\5=120 /  5\5=25 /  5\5 / / 2\5\5 /  3\7 5\7 2\3\7 7 /  2\2\3\7 5\2\2\5=100 / 3\7\5=105 / 2\2=4 / 5\5\2=50 / 7\5\3=105 2\3\7=42 2\3\7\2=84 01  02  03  04   05   06  07  08   09 10  11   12 15 010~011쪽 02일차 1. 최대공약수와 최소공배수 ① /  / /  01 02 03 04 2\2 /  2\2\2 /  3\3 5\5 05 06  3\3\3  /  2\7 / 2 /  2\2\7=28 / 2\5 / /  2 /  3 5 / 2\3 3 3\5 /  3\5 / 2\2\2\5=40 3\3\5=45 /  5\5\3=75 / / 3\3\3\2=54 07   08   09   10   2\2\7 2\2\2 / /  2\2=4 / 2\2\7\2=56 2\3\5 3 3\7 /  / / 3\2\5\7=210 2\2\3\3 3\7 3 3\2\2\3\7=252 /  / 2\2\2\5 /  2\2\5=20 /  2\2\5 2\3\7 2\3\7\2=84 2\2\3 02 쎈연산 | 9권 /  2\2\5\2=40 / 2\3=6 11  / / 2\2\2\2\3 /  2\2\2 12  2\2\2=8  2\3\3\3 /  / 2\2\2\2\3=48 /  2\2\3\3 /  2\3\3=18 / 2\3\3\3\2=108 /  3\3\7 2\3\7 3\7=21 3\7\3\2=126 13   14 120 03일차 1. 최대공약수와 최소공배수 ① 012~013쪽 /  / /  / 2\2\2 / 2\3 2\5 /  5\5 5 /  2 / 2\2\2\3=24 /  5\2\5=50 /  2\2\3 3\5 / 3 / 3\2\2\5=60 2\7 3\3\7 / 7\2\3\3=126 /  7 /  /  2\3\3 2\5 / 2 / 2\3\3\5=90  5\5 2\2\2\5 / / 5\5\2\2\2=200 /  /  2\2\7 7\7 7 5 /  7\2\2\7=196 / 01 02  03  04   05  06 07  08   09 2\3\5 3\5\2=30 3\5 / 3\5=15 / 2\2\2\2\2 10  2\2\2\2=16  2\2\2\5 / 2\2\2\2 / 2\2\2\2\2=32 / /  11   2\2\2\5\7=280 / 2\2\2\2\3 2\2\3\3 / 2 2\7 /   2\2\3=12 12   /  2\2\3\2\2\3=144 2\2\3 2\2\2\7 /  / 2\2\2\7\3=168 /  / 13  14 ⑴ ㉠ ⑵ ㉢ ⑶ ㉡ 7\11 3\11 / 2\2=4 11 11\7\3=231 04일차 2. 최대공약수와 최소공배수 ② 014~015쪽 01 02 5 /  /  5\2=10 3\2\5=30 3 216 센연산9권_정답.indd 2 15. 10. 23. 오후 2:35 / (cid:9066) / (cid:9066) 2\2=4 3\3=9 2\2\4\3=48 / (cid:9066) 3\3\3\8=216 / (cid:9066) 2\5=10 2\5\3\4=120 3\3=9 2\3=6 / (cid:9066) 3\3\4\5=180 / (cid:9066) 2\3\7\8=336 / (cid:9066) / (cid:9066) 2\11=22 2\11\2\3=132 2\7=14 2\2\2=8 2\7\4\3=168 / (cid:9066) 2\2\2\4\3=96 / (cid:9066) 2\3\3=18 2\3\3\2\5=180 2\3\5=30 2\3\5\2=60 / (cid:9066) 2\3\7=42 2\3\7\2\3=252 03 04 05 (cid:9066) 06 07 (cid:9066) 08 (cid:9066) 09 (cid:9066) 10 11 (cid:9066) 12 (cid:9066) 13 (cid:9066) 14 6 05일차 2. 최대공약수와 최소공배수 ② 016~017쪽 / (cid:9066) / (cid:9066) / (cid:9066) 2\2\3=12 5\3\2=30 7\4\5=140 / (cid:9066) / (cid:9066) 2\5=10 / (cid:9066) 3\3=9 2\2=4 2\5\3\2=60 3\3\4\3=108 / (cid:9066) 2\2\10\3=120 3\7=21 / (cid:9066) 3\7\2=42 / (cid:9066) / (cid:9066) / (cid:9066) 2\3=6 2\3\8\9=432 2\13=26 2\13\2=52 2\5=10 3\11=33 2\5\8\5=400 / (cid:9066) 3\11\3=99 / (cid:9066) 2\2\5=20 3\3\5=45 / (cid:9066) 2\2\5\2\3=120 3\3\5\2=90 3\3\3\3\2=162 / (cid:9066) 3\3\3=27 2\2\7=28 2\2\7\3\2=168 01 02 2 03 5 04 (cid:9066) 7 05 06 07 (cid:9066) 08 (cid:9066) 09 (cid:9066) 10 (cid:9066) 11 (cid:9066) 12 (cid:9066) 13 (cid:9066) 14 15 (cid:9066) 16 180 06일차 2. 최대공약수와 최소공배수 ② 018~019쪽 01 02 3 03 5 / (cid:9066) / (cid:9066) / (cid:9066) 3\3\7=63 5\3\8=120 7 7\3\8=168 2\2\6\7=168 3\3\3\4=108 / (cid:9066) 2\3\5\6=180 3\5\4\3=180 2\3\11=66 / (cid:9066) 2\7\5\2=140 3\13\2=78 / (cid:9066) 2\5\9\4=360 04 / (cid:9066) / (cid:9066) / (cid:9066) / (cid:9066) / (cid:9066) 2\3=6 3\3=9 2\3=6 2\2=4 2\7=14 3\5=15 05 06 (cid:9066) 07 (cid:9066) 08 (cid:9066) 09 (cid:9066) 10 (cid:9066) 11 (cid:9066) 12 (cid:9066) 13 14 (cid:9066) 15 (cid:9066) 2\3\3=18 16 ⑴ ㉡ ⑵ ㉢ ⑶ ㉠ 2\3\5=30 / (cid:9066) 2\2\3=12 2\2\2=8 3\13=39 2\5=10 / (cid:9066) 2\2\3\2\5=120 / (cid:9066) 2\2\2\7\6=336 / (cid:9066) 2\3\3\4\3=216 2\3\5\3\5=450 19 12 11 20 24 5 21 27 9 2단계 약분과 통분 01일차 1. 약분 01 04 1 07 3 10 5 13 5 16 9 , , 2 22 25 28 1/4 3/4 8/9 2/5 31 7/10 7/8 3/4 34 37 40 5/7 02 05 3 08 7 11 3 14 7 17 4 , , 7 23 26 29 32 1/8 2/3 3/7 2/7 4/7 35 38 7/12 1/5 022~023쪽 03 06 5 09 5 12 6 15 9 18 , , 5 18 7/12 1/6 24 27 30 33 4/9 3/5 36 39 3/16 1/4 2/3 정답 03 216 쎈연산9권_정답.indd 3 15. 10. 30. 오후 12:00 02일차 1. 약분 024~025쪽 01 04 1 07 4 10 10 13 7 16 8 19 7 22 , , 8 14 25 26 13 28 1/4 5/9 31 8/15 34 37 40 43 46 3/4 3/4 5/9 4/5 3/5 02 05 4 08 5 11 3 14 7 17 , 12 20 9 23 22 , 2 , 2 26 16 8 29 32 35 38 41 44 1/2 5/8 2/3 3/5 5/8 3/7 2/5 03일차 1. 약분 01 04 3 07 1 10 6 13 5 16 5 19 3 22 , , 9 18 25 28 14 28 31 1/2 4/5 5/6 04 쎈연산 | 9권 02 05 2 08 5 11 9 14 11 , 17 9 20 23 , 1 , 10 10 18 26 21 2 29 32 1/2 7/8 3/8 03 06 2 09 9 12 9 15 3 18 6 21 24 , , 7 , 5 10 24 27 21 8 30 33 36 39 42 45 1/3 2/5 5/8 4/7 5/6 1/3 1/4 026~027쪽 03 06 5 09 7 12 3 15 8 18 21 24 27 30 33 15 10 14 21 3/7 7/9 1/6 , , 5 , 7 9 35 38 41 44 2/5 3/8 2/3 5/6 34 37 40 43 4/5 7/9 8/9 3/4 46 , , 8/12 4/6 2/3 04일차 2. 통분 36 39 42 45 2/9 4/9 3/4 3/5 028~029쪽 01 , 02 , (3/6 2/6) , 03 (8/12 9/12) , 05 (12/30 25/30) , 07 (27/63 28/63) , 09 (63/70 50/70) , 11 (313/26 , 312/26) 13 (2/4 3/4) , 15 (7/10 4/10) , 17 (4/18 3/18) , 19 (21/45 20/45) , 21 (5/20 4/20) , 04 (9/27 15/27) , 06 (40/48 18/48) , 08 (77/99 81/99) , 10 (15/36 24/36) , 12 (436/56 , 14 214/56) (5/6 4/6) , 16 (10/12 9/12) , 18 (21/39 26/39) , 20 (42/50 17/50) , 22 (34/56 49/56) , 23 (212/16 7/16) , 24 (6/20 45/20) , 25 (321/60 326/60) , 26 (577/84 718/84) (633/48 , 27 620/48) 27/72 40/72 05일차 2. 통분 030~031쪽 01 , 02 , (7/28 4/28) (5/30 6/30) 216 쎈연산9권_정답.indd 4 15. 10. 29. 오후 4:05 03 , 04 , 15 , 16 , (728/30 , 715/30) 17 (925/60 , 18 248/60) (8/16 9/16) , 19 (7/27 15/27) , 21 (15/24 14/24) , 23 (45/80 12/80) , 25 (12/14 13/14) , 20 (5/30 27/30) , 22 (25/70 56/70) , 24 (22/42 35/42) , 26 (19/30 27/30) , 27 (223/35 30/35) , 28 (7 , 18 4) (28/72 427/72) , 29 30 (225/90 248/90) , (3 31 ⑴ ㉡ ⑵ ㉠ 3) (97/33 26/33) (10/15 6/15) , 05 (40/50 35/50) , 07 (32/72 63/72) , 09 (27/42 28/42) , 11 (21/27 49/27) , 13 (416/24 315/24) , 15 (628/72 , 618/72) 17 (2/8 5/8) , 19 (15/40 7/40) , 21 (36/40 15/40) , 23 (8/30 21/30) , 25 (24/32 20/32) , 06 (30/42 35/42) , 08 (90/99 88/99) , 10 (130/200 180/200) , 12 (221/35 220/35) , 14 (521/48 16/48) , 16 (15/18 5/18) , 20 (20/24 21/24) , 22 (33/36 16/36) , 24 (15/48 32/48) , 26 (24/75 35/75) , 27 (5/12 39/12) , 28 (55/30 8/30) , 29 (210/36 29/36) , 30 (727/96 556/96) (416/42 , 31 427/42) 10/36 21/36 032~033쪽 01 , 02 , 06일차 2. 통분 (9/27 3/27) , 03 (12/20 15/20) , 05 (45/63 28/63) , 07 (32/72 45/72) , 09 (30/39 26/39) , 11 (4/24 6/24) , 04 (35/42 12/42) , 06 (21/24 16/24) , 08 (42/60 50/60) , 10 (44/84 63/84) , 12 (124/30 25/30) , 13 (320/35 , 14 214/35) (556/72 427/72) (50/80 656/80) 3단계 분수의 덧셈과 뺄셈 01일차 1. 분모가 다른 진분수의 덧셈 036~037쪽 01 04 07 7/10 1/4 11/12 10 11/18 13 16 19 22 25 28 7/15 31/35 29/40 47/48 37/60 47/84 31 119/98 34 23/36 02 05 08 11 14 17 7/12 16/63 14/15 19/20 11/6 29/36 20 113/42 23 26 29 31/50 41/70 71/84 32 103/120 03 06 09 12 15 18 21 24 27 30 33 2/3 7/8 11/16 111/20 117/30 28/39 29/48 12/55 119/72 59/96 107/180 정답 05 216 쎈연산9권_정답.indd 5 15. 10. 29. 오후 4:05 02일차 1. 분모가 다른 진분수의 덧셈 038~039쪽 01 3/4 04 11/18 11/28 07 10 15/12 13 13/18 16 13/22 19 22 25 28 31 34 37 40 15/28 37/39 19/48 7/12 40/81 127/52 83/100 11/6 01 3/8 9/14 5/42 11/15 17/18 11/20 04 07 10 13 16 19 17/24 06 쎈연산 | 9권 02 1/2 05 5/18 08 11/4 11 11/12 14 17 12/9 7/8 14/15 20 23 26 29 32 35 38 13/40 119/48 147/60 137/84 111/70 119/70 02 05 08 3/10 3/16 5/9 2/3 11 14 17 20 13/20 11/24 20/27 03 4/9 06 09 12 15 18 21 24 27 30 33 36 39 11/24 7/10 13/15 13/20 22/25 17/30 34/45 13/15 127/65 23/45 83/90 103/180 03 06 3/5 17/30 09 12 3/4 15 18 21 13/16 3/5 15/24 29/30 03일차 1. 분모가 다른 진분수의 덧셈 040~041쪽 04일차 1. 분모가 다른 진분수의 덧셈 042~043쪽 23 26 29 32 35 23/36 43/48 43/60 23/35 8/15 38 17/180 24 27 30 33 36 39 19/42 111/48 31/60 161/88 37/45 17/35 3/10 8/15 11/2 11/5 4/5 13/20 23/24 5/6 02 05 08 11 14 17 20 23 26 29 111/36 116/45 32 35 38 27/50 18/35 17/30 5/12 9/16 15/8 11/12 17/15 13/20 11/12 111/15 113/40 25/48 37/56 03 06 09 12 15 18 21 24 27 30 33 36 39 17/72 67/144 22 7/10 110/21 133/56 38/63 119/54 25 28 31 34 37 40 69/110 7/10 01 5/8 04 5/12 9/20 7/9 07 10 13 11/12 17/18 11/24 16 19 22 11/30 25 28 31 31/35 31/45 29/48 34 16/55 37 67/84 40 15/24 216 센연산9권_정답.indd 6 15. 10. 23. 오후 2:36 05일차 1. 분모가 다른 진분수의 덧셈 07일차 2. 분모가 다른 대분수의 덧셈 044~045쪽 048~049쪽 01 04 07 10 13 3/14 7/16 17/20 11/30 126/45 16 02 05 11/30 7/18 08 17/24 11 29/36 33/50 14 17 55/63 19 (위에서부터) 17/21 , 19/20 5/6 03 14/15 06 8/9 09 12 15 18 23/30 13/40 15/56 29/45 06일차 2. 분모가 다른 대분수의 덧셈 046~047쪽 01 25/6 04 34/15 07 31/9 10 411/18 13 32/3 16 19 22 25 28 31 34 323/28 629/36 317/21 229/50 459/66 87/78 311/12 02 31/2 05 08 11 14 17 20 23 26 29 32 513/42 61/12 611/20 514/25 517/28 531/40 83/44 647/63 631/70 537/42 03 06 09 12 15 18 21 43/8 37/8 52/15 517/24 423/27 319/30 55/6 24 423/45 357/70 49/10 27 30 33 489/180 01 33/4 04 59/14 07 211/24 10 33/5 13 55/18 519/22 217/28 317/30 51/36 317/42 16 19 22 25 28 31 523/60 34 75/6 37 389/96 40 223/20 02 05 47/10 29/16 08 55/9 11 54/15 53/20 319/24 429/30 46/35 211/18 539/56 371/72 14 17 20 23 26 29 32 35 61/80 38 59/112 03 06 09 12 15 45/12 45/18 37/12 617/18 61/4 18 523/27 61/30 52/35 225/42 517/30 677/90 537/90 21 24 27 30 33 36 39 67/120 08일차 2. 분모가 다른 대분수의 덧셈 01 22/3 04 48/15 411/30 311/20 51/21 07 10 13 02 43/5 05 55/24 71/12 08 11 611/20 14 51/6 050~051쪽 03 55/12 411/28 411/18 313/21 06 09 12 15 323/30 정답 07 216 센연산9권_정답.indd 7 15. 10. 23. 오후 2:36 09일차 2. 분모가 다른 대분수의 덧셈 052~053쪽 17 20 23 32/15 223/36 73/40 26 27/9 29 32 35 38 55/54 313/72 56/35 231/45 02 64/7 05 610/21 08 75/8 11 62/15 14 55/9 17 511/24 52/15 51/36 58/21 613/48 32/35 20 23 26 29 32 35 871/84 38 274/105 18 21 24 27 30 33 36 39 35/33 61/36 637/42 41/45 543/60 671/88 525/76 7101/200 03 06 09 37/18 46/25 53/4 12 65/16 620/21 722/27 15 18 21 51/3 24 511/12 65/42 28/11 467/90 576/85 27 30 33 36 39 3107/117 16 519/30 19 22 25 28 31 34 37 40 424/35 439/40 444/45 625/48 423/72 68/65 625/32 511/16 01 45/8 04 57/20 217/72 85/12 41/18 317/24 415/28 317/36 417/40 531/48 41/60 07 10 13 16 19 22 25 28 31 34 56/35 37 697/100 40 47/24 08 쎈연산 | 9권 10일차 2. 분모가 다른 대분수의 덧셈 054~055쪽 01 47/12 04 613/20 419/24 632/35 74/45 07 10 13 16 441/66 , 19 02 05 08 11 14 17 37/24 53/20 429/30 531/36 415/16 523/70 03 06 09 51/18 319/21 61/6 12 15 18 613/40 451/56 619/96 , 28/9 51/18 511/18 11일차 3. 분모가 다른 진분수의 뺄셈 056~057쪽 01 3/10 04 07 10 13 16 19 22 25 28 1/20 1/9 5/16 9/20 3/28 2/35 23/40 17/50 51/64 31 1/100 34 7/12 02 05 08 11 14 17 20 23 26 29 1/12 1/24 3/10 7/18 8/21 1/30 13/36 1/8 1/30 1/14 32 17/162 03 2/15 06 1/8 1/5 09 12 11/18 15 1/8 18 1/15 8/39 2/45 37/84 13/99 21 24 27 30 33 41 180 216 센연산9권_정답.indd 8 15. 10. 23. 오후 2:36 14일차 3. 분모가 다른 진분수의 뺄셈 062~063쪽 12일차 3. 분모가 다른 진분수의 뺄셈 058~059쪽 01 1/6 04 07 10 13 16 19 22 25 28 31 34 37 40 7/18 2/35 1/3 1/6 7/24 13/27 11/30 17/36 22/45 19/63 31/66 41/96 1/12 01 1/3 04 5/14 1/42 4/9 5/24 3/8 17/28 07 10 13 16 19 02 3/8 05 08 11 14 17 20 23 26 29 32 35 1/18 1/6 2/3 7/20 5/24 1/28 2/35 5/42 7/11 12/35 1/15 38 34/117 02 2/9 05 08 11 14 17 20 2/15 1/8 1/4 11/24 1/26 11/28 03 1/6 06 09 2/21 3/10 12 1/9 15 3/20 17/24 13/30 7/36 2/21 19/56 31/72 31/84 18 21 24 27 30 33 36 39 11 180 03 1/10 06 1/5 09 12 15 18 21 5/16 1/21 5/24 11/27 7/30 13일차 3. 분모가 다른 진분수의 뺄셈 060~061쪽 22 25 28 31 34 37 40 19/30 18/35 26/45 13/56 53/70 13/30 13/40 01 1/6 04 07 10 13 16 19 22 25 28 31 34 37 40 7/24 1/90 1/12 11/18 3/26 1/15 3/40 2/45 17/50 23/60 25/52 29/90 18/35 23 26 29 32 35 5/32 17/36 23/48 23/60 7/78 38 43/112 24 27 30 33 36 39 1/34 23/40 25/48 15/77 5/28 19/150 02 1/9 05 3/28 1/12 4/15 1/3 1/10 4/9 29/42 11/45 6/55 29/60 13/68 08 11 14 17 20 23 26 29 32 35 38 19/120 03 06 3/20 1/56 09 1/6 4/9 12 15 18 21 24 27 30 33 36 39 5/22 7/30 1/40 15/44 17/48 41/60 39/70 37/72 19/35 정답 09 216 센연산9권_정답.indd 9 15. 10. 23. 오후 2:36 15일차 3. 분모가 다른 진분수의 뺄셈 064~065쪽 19 (위에서부터) , 1/18 5/27 16일차 4. 분모가 다른 대분수의 뺄셈 066~067쪽 01 04 07 10 13 16 1/12 5/21 1/30 8/15 9/40 23/72 01 12/9 04 62/27 07 21/4 9/20 10 13 113/24 16 32/3 19 22 25 28 31 34 38/35 313/40 343/56 214/57 283/90 239/40 02 05 08 11 14 17 4/15 7/24 13/30 7/36 11/25 47/96 02 05 08 11 14 17 20 25/14 33/40 15/12 45/21 37/24 117/30 17/36 23 23/40 349/60 26 29 43/70 32 2 21 100 03 2/9 06 7/27 11/30 3/44 29/60 09 12 15 18 17/100 03 06 09 12 15 18 21 24 27 30 33 11/5 31/4 411/20 110/11 22/27 323/33 119/36 431/48 23/70 517/72 159/150 068~069쪽 17일차 4. 분모가 다른 대분수의 뺄셈 01 02 03 11/14 11/24 23/8 10 쎈연산 | 9권 04 07 37/30 25/36 10 3/4 13 27/9 16 413/30 135/36 431/40 334/45 233/50 719/70 213/14 19 22 25 28 31 34 37 44/45 40 쌀, 01 13/7 04 23/20 07 41/72 10 13 16 19 22 25 28 11/12 317/20 11/24 217/30 325/36 13/14 137/56 05 08 11 43/32 19/10 37/15 14 41/3 17 34/15 20 28/39 11/42 311/48 441/60 225/72 23 26 29 32 35 321/76 38 197/100 02 05 51/18 25/24 08 25/8 11 42/15 14 22/7 17 20 23 26 29 37/24 47/30 423/40 43/44 215/56 06 09 12 15 18 21 24 27 30 33 36 39 32/35 37/12 413/18 37/26 317/35 311/40 61/44 311/50 159/60 223/90 183/85 335/162 070~071쪽 03 06 09 21/20 14/45 11/2 25/9 12 15 18 21 24 27 30 47/22 223/24 11/30 119/42 519/45 29/30 17/12 18일차 4. 분모가 다른 대분수의 뺄셈 216 센연산9권_정답.indd 10 15. 10. 23. 오후 2:36 31 34 21/65 218/35 37 3 40 41 110 13/20 01 41/6 04 34/21 42/63 214/15 313/21 125/26 117/30 522/35 427/40 428/45 07 10 13 16 19 22 25 28 31 149/60 34 51/6 37 40 367/90 117/24 32 35 219/33 171/75 38 1 71 120 33 36 39 123/35 517/104 149/75 07 27/24 10 119/36 411/48 13 16 08 11 14 17 311/30 121/40 129/56 19일차 4. 분모가 다른 대분수의 뺄셈 072~073쪽 547/60 19 (위에서부터) 179/95 , , , 213/24 17/10 317/40 27/12 21일차 5. 세 분수의 덧셈과 뺄셈 076~077쪽 02 22/5 05 21/30 08 21/9 11 21/20 219/24 24/27 14 17 20 21/32 23 24/35 26 35/42 59/25 453/63 29 32 35 149/78 38 2101/120 03 31/4 06 41/15 15/12 411/20 27/25 23/28 110/33 231/36 137/42 231/60 21/72 09 12 15 18 21 24 27 30 33 36 39 159/80 2 31 150 01 7/8 1/6 17/20 1/8 04 07 10 13 35/36 16 1 19 1/2 22 13/40 25 28 31 34 23/56 113/18 49/20 111/24 02 11/12 2/5 1/4 05 08 11 117/30 14 1/4 17 19/24 20 12/15 23 26 29 32 19/42 113/60 19/20 37/30 074~075쪽 22일차 5. 세 분수의 덧셈과 뺄셈 20일차 4. 분모가 다른 대분수의 뺄셈 01 41/8 04 213/14 02 05 27/18 717/56 03 06 37/10 18/15 01 2 04 07 1/12 31/40 02 05 1/5 1/5 08 11/2 09 12 15 18 529/36 425/44 259/60 41/24 03 2/3 06 15/16 09 23/24 12 1/6 15 1/21 25/28 25/36 28/45 35/72 18 21 24 27 30 33 331/48 761/90 078~079쪽 03 3/4 06 09 7/18 1/12 정답 11 216 센연산9권_정답.indd 11 15. 10. 23. 오후 2:36 38 39 823/56 647/63 24일차 5. 세 분수의 덧셈과 뺄셈 082~083쪽 23일차 5. 세 분수의 덧셈과 뺄셈 080~081쪽 10 1/9 13 1/24 11/30 31/48 1/2 2/9 11/5 43/44 427/28 437/60 1/7 16 19 22 25 28 31 34 37 40 01 1 04 1 07 1/4 10 19/20 13 11/10 16 19 22 25 28 31 1/36 31/48 11/6 13/24 17/36 31/56 11 14 17/20 117/30 17 29/36 20 13/56 23 1/4 26 5/24 29 111/36 32 35 38 7/45 731/48 344/63 02 11/12 05 08 3/16 1/4 13/8 11 14 13/10 17 25/42 20 141/70 23 26 29 32 17/18 7/8 1/44 67/72 12 15 18 21 24 27 30 33 36 39 3/20 13/30 119/42 29/72 11/16 25/27 31/42 19/56 325/54 269/70 17/18 03 1/6 06 09 1/9 12 27/28 1/30 14/45 11/72 11/24 11/7 14/45 19/90 15 18 21 24 27 30 33 36 34 35 51/10 12 쎈연산 | 9권 329/36 111/48 37 39/50 40 43/45 01 1 04 1/7 07 17/30 10 4/9 13 1/24 1/36 5/14 17/16 16 19 22 25 15/28 28 31 34 37 40 13/32 22/45 231/48 319/35 17/24 01 1/6 04 5/18 11/8 11/4 07 10 02 1/5 05 11/18 08 111/12 11 13/20 14 3/4 1/4 1/9 9/20 23/30 17 20 23 26 29 15/36 32 23/54 61/5 35 38 431/72 02 1 05 08 11 1/20 13/40 11/6 03 15/12 06 1/6 09 11/3 12 111/24 15 5/6 18 21 24 125/42 11/50 5/28 27 2/3 30 33 36 39 13/18 19/30 546/63 537/45 084~085쪽 03 06 09 12 11/18 11/7 11/24 29/30 25일차 5. 세 분수의 덧셈과 뺄셈 216 센연산9권_정답.indd 12 15. 10. 23. 오후 2:36 13 6/7 16 7/12 19 (왼쪽에서부터) 14 17/36 17 411/14 , 23/24 11/42 15 18 13/36 531/60 4단계 다각형의 둘레와 넓이 01일차 1. 직사각형의 둘레 02 088~089쪽 03 06 09 12 15 18 21 20`cm 30`cm 38`m 76`cm 56`cm 28`m 128`m 05 08 11 14 16`cm 28`cm 30`m 40`cm 17 20 24`cm 132`cm 80`m 05 08 11 14 17 20 23 16`cm 48`cm 42`m 44`cm 28`cm 128`cm 100`m 06 09 12 15 18 21 24 26`cm 22`m 52`m 80`cm 52`cm 36`m 144`m 04 07 10 28`cm 40`cm 13 16 32`m 12`cm 19 112`cm 22 96`cm 25 72`m 50 01 04 07 10 13 8`cm^2 12`cm^2 15`m^2 1`cm^2 16 441`cm^2 19 22 256`cm^2 121`m^2 54 04일차 2. 직사각형의 넓이 02 05 20`cm^2 08 11 14 17 20 24`cm^2 30`m^2 49`cm^2 16`cm^2 484`cm^2 225`m^2 02일차 1. 직사각형의 둘레 090~091쪽 05일차 2. 직사각형의 넓이 02 05 08 11 14 17 20 23 32`cm 22`cm 58`cm 50`m 48`cm 16`cm 124`cm 108`m 03 06 09 12 15 18 21 24 44`cm 36`cm 28`m 60`m 84`cm 60`cm 24`m 136`m 01 04 07 10`cm^2 60`cm^2 10 13 16 19 22 25 50`cm^2 42`m^2 4`cm^2 400`cm^2 324`cm^2 100`m^2 900 02 05 08 11 14 17 20 23 21`cm^2 24`cm^2 66`cm^2 54`m^2 64`cm^2 36`cm^2 529`cm^2 196`m^2 06일차 2. 직사각형의 넓이 092~093쪽 03일차 1. 직사각형의 둘레 01 02 03 01 02 04 07 18`cm^2 98`cm^2 05 40`cm^2 08 28`cm^2 03 06 09 12`cm 20`cm 22`cm 96`cm^2 120`cm^2 01 04 07 10 13 10`cm 22`cm 26`m 8`cm 16 116`cm 19 92`cm 22 44`m 58 18`cm 50`cm 46`cm 38`m 4`cm 120`cm 88`cm 01 04 07 10 13 16 19 22 25 68`m 200 094~095쪽 03 06 09 12 15 18 21 35`cm^2 56`cm^2 70`m^2 196`cm^2 100`cm^2 25`m^2 400`m^2 096~097쪽 03 06 09 12 15 18 21 24 36`cm^2 32`cm^2 35`m^2 84`m^2 169`cm^2 144`cm^2 16`m^2 625`m^2 098~099쪽 90`cm^2 63`cm^2 30`m^2 정답 13 216 센연산9권_정답.indd 13 15. 10. 23. 오후 2:36  10 13 16 72`m^2 9`cm^2 19 22 361`cm^2 289`cm^2 25 144`m^2 26 11 14 110`m^2 17 64`cm^2 20 23 25`cm^2 576`cm^2 324`m^2 12 15 18 21 24 117`m^2 225`cm^2 121`cm^2 36`m^2 529`m^2 07일차 3. 평행사변형의 넓이, 삼각형의 넓이 01 04 07 10 13 16 19 22 12`cm^2 30`cm^2 21`m^2 12`cm^2 45`cm^2 49`cm^2 30`m^2 300 02 05 08 11 14 17 20 25`cm^2 42`cm^2 45`m^2 21`cm^2 15`cm^2 55`cm^2 44`m^2 100~101쪽 03 06 09 12 15 18 21 56`cm^2 72`cm^2 80`m^2 36`cm^2 28`cm^2 16`m^2 60`m^2 102~103쪽 08일차 3. 평행사변형의 넓이, 삼각형의 넓이 01 04 07 15`cm^2 108`cm^2 10 13 99`cm^2 63`m^2 16 6`cm^2 19 22 25 30`cm^2 27`cm^2 21`m^2 250 05 49`cm^2 02 08 11 14 17 20 23 24`cm^2 110`cm^2 100`m^2 15`cm^2 10`cm^2 42`cm^2 28`m^2 03 06 09 12 15 18 21 24 81`cm^2 56`cm^2 36`m^2 117`m^2 24`cm^2 18`cm^2 12`m^2 54`m^2 09일차 3. 평행사변형의 넓이, 삼각형의 넓이 104~105쪽 01 04 07 10 13 6`cm^2 40`cm^2 24`cm^2 16`m^2 4`cm^2 14 쎈연산 | 9권 02 05 08 11 14 12`cm^2 9`cm^2 49`cm^2 35`m^2 14`cm^2 03 06 09 12 15 18`cm^2 15`cm^2 10`m^2 64`m^2 27`cm^2 17 20 23 9`cm^2 48`cm^2 35`m^2 18 21 24 20`cm^2 12`m^2 49`m^2 10일차 4. 사다리꼴의 넓이, 마름모의 넓이 16 19 22 40`cm^2 30`cm^2 25 24`m^2 164 01 04 07 10 13 16 19 22 7`cm^2 10`cm^2 12`m^2 8`cm^2 66`cm^2 40`cm^2 35`m^2 112 01 04 07 10 13 16 19 22 25 12`cm^2 65`cm^2 49`cm^2 33`m^2 6`cm^2 54`cm^2 48`cm^2 30`m^2 600 02 05 08 11 14 17 20 18`cm^2 20`cm^2 25`m^2 24`cm^2 14`cm^2 21`cm^2 50`m^2 02 05 08 11 14 17 20 23 27`cm^2 14`cm^2 77`cm^2 56`m^2 18`cm^2 15`cm^2 80`cm^2 42`m^2 11일차 4. 사다리꼴의 넓이, 마름모의 넓이 12일차 4. 사다리꼴의 넓이, 마름모의 넓이 02 01 04 5`cm^2 07 108`cm^2 10 13 16 19 22 25 45`cm^2 30`m^2 10`cm^2 78`cm^2 60`cm^2 54`m^2 8 05 25`cm^2 08 11 14 10`cm^2 110`cm^2 60`m^2 17 20 23 28`cm^2 12`cm^2 96`cm^2 70`m^2 106~107쪽 03 06 09 12 15 18 21 30`cm^2 42`cm^2 56`m^2 32`cm^2 30`cm^2 15`m^2 112`m^2 108~109쪽 03 06 09 12 15 18 21 24 40`cm^2 30`cm^2 16`m^2 95`m^2 35`cm^2 20`cm^2 12`m^2 108`m^2 110~111쪽 03 06 09 12 15 18 21 24 36`cm^2 27`cm^2 12`m^2 120`m^2 45`cm^2 32`cm^2 24`m^2 120`m^2 216 센연산9권_정답.indd 14 15. 10. 23. 오후 2:36 5단계 분수의 곱셈 ⑴ 01일차 1. (진분수) (자연수) 114~115쪽 01 11/2 5/7 41/6 11/2 21/4 04 07 10 13 16 21/10 19 32/3 22 113/15 25 31/3 28 37/27 31 220/53 34 6 01 04 07 10 13 16 19 21/3 5/6 1/5 13/5 42/7 62/3 12/5 \ 02 11/4 7/8 21/7 67/8 61/4 21/2 36/7 51/3 24/5 05 08 11 14 17 20 23 26 29 129/36 32 42/9 \ 02 23/4 05 4/9 08 4 11 14 17 55/6 11/8 35/9 15/11 20 03 4/5 06 9 09 75/7 43/8 2/3 12 15 18 14 21 24 27 30 33 31/2 88/9 46/7 25/8 11/15 03 2 06 1/3 09 33/4 12 4 15 18 21 101/2 21/10 21/12 02일차 1. (진분수) (자연수) 116~117쪽 03일차 1. (진분수) (자연수) 118~119쪽 22 25 28 112/3 11/14 113/15 31 42/3 34 412/19 37 40 33/5 22/5 01 21/2 04 07 10 13 16 11/7 1/5 36/7 15/9 21/3 19 113/14 22 25 28 31 13/4 71/2 15/7 14/5 34 210/31 37 40 97/9 41/2 23 26 51/2 36/7 29 15/16 32 35 38 24/5 52/3 31/5 24 17/13 27 4/5 30 33 36 39 71/2 6/13 73/7 75/9 \ 02 3 05 1/2 08 22/5 11 83/4 14 16 17 12/13 112/3 20 23 111/16 26 15/6 29 32 35 38 13/11 23/26 39/17 19/26 03 06 09 3/5 2/3 10 12 43/8 15 131/2 18 71/2 21 17/15 21/17 24 27 14/5 30 21/12 117/32 39/10 33 36 39 63/5 정답 15 216 센연산9권_정답.indd 15 15. 10. 23. 오후 2:36 04일차 1. (진분수) (자연수) 06일차 2. (대분수) (자연수) 120~121쪽 124~125쪽 01 11/2 04 1/4 07 2 10 71/2 91/3 13 16 22/11 19 26 22 213/16 25 113/20 28 31 34 37 40 21/2 6/13 44/15 25/11 83/4 01 2 04 15 07 10 22/9 61/2 13 11/17 16 \ 02 12/5 11/3 62/3 77/8 11/5 41/6 91/3 27/9 51/3 05 08 11 14 17 20 23 26 29 117/25 32 22/3 92/7 35 38 101/9 \ 02 21/4 55/7 05 08 71/2 11 14 14 117/18 17 25/8 19 (위에서부터) 28 , 9/10 44/5 16 쎈연산 | 9권 03 12/7 06 21/10 09 24/7 12 8 15 63/10 211/12 101/2 18 21 24 41/2 27 30 33 36 39 111/21 33/5 41/5 411/16 45/18 03 06 09 12 15 18 22/5 51/4 42/3 33/8 63/4 85/9 05일차 1. (진분수) (자연수) 122~123쪽 01 41/2 21/3 04 07 83/4 52/3 93/7 35/9 10 13 16 19 22 39/10 55/12 25 23/7 28 331/7 461/2 31 34 71/5 51/3 41/2 71/2 62/3 33/5 01 04 07 10 13 16 251/3 19 31/4 71/9 22 25 81/10 28 43/4 \ 02 8 05 22/7 71/5 122/3 08 11 14 123/4 17 62/3 52/5 20 23 26 29 32 122/3 101/3 211/9 311/3 \ 02 22/5 62/3 71/2 81/4 93/5 105/7 05 08 11 14 17 20 211/4 23 26 29 62/9 74/5 81/3 03 06 09 12 21/2 62/3 73/5 34 15 131/2 18 51/2 21 24 27 30 33 42/11 141/2 103/4 202/5 231/2 55/6 51/2 81/3 81/2 03 06 09 12 15 18 111/3 96/7 21 151/2 24 64/5 27 30 26/11 36/13 07일차 2. (대분수) (자연수) 126~127쪽 216 센연산9권_정답.indd 16 15. 10. 23. 오후 2:36 08일차 2. (대분수) (자연수) 128~129쪽 31 25/7 34 151/9 41/20 123/4 37 40 01 71/2 33/7 42/5 04 07 10 102/5 13 91/2 16 191/2 19 61/9 22 102/3 25 251/2 28 25/6 31 122/3 34 179/11 37 40 283/4 211/2 32 35 38 28/15 362/3 302/3 33 43/4 36 46/19 39 106/11 \ 02 33/4 21/4 51/3 91/6 51/7 55/8 05 08 11 14 17 20 171/3 23 61/2 26 63/11 29 151/2 32 91/2 35 38 431/2 44/17 03 06 09 12 15 44/5 31/3 111/4 181/3 46/7 18 141/4 162/3 21 24 54/5 27 105/6 341/2 30 33 65/6 36 193/5 39 101/20 130~131쪽 07 22/9 63/4 10 13 44/5 36/7 16 19 101/2 22 44/9 43/5 25 28 111/2 31 32/7 34 324/7 134/7 37 40 52/3 01 33/5 91/3 04 07 93/5 95/7 10 13 101/3 16 08 121/2 11 51/2 14 142/3 17 102/7 20 93/8 23 26 29 32 35 38 162/3 181/2 101/3 151/2 222/9 253/5 \ 02 102/7 111/4 05 08 141/2 11 93/4 14 141/2 17 57/9 171/3 103/5 19 (위에서부터) 191/9 , 112/3 52/5 61/2 23/4 42/3 09 12 15 18 21 24 27 57/10 41/4 30 26/13 33 42/5 36 39 341/2 204/9 03 06 09 12 15 171/2 121/2 101/3 113/8 31/6 18 511/21 10일차 2. (대분수) (자연수) 132~133쪽 09일차 2. (대분수) (자연수) 01 04 91/3 42/3 \ 02 05 71/2 44/7 03 06 104/5 63/4 11일차 3. (자연수) (진분수) 01 4 \ 02 03 11/5 134~135쪽 17/8 정답 17 216 센연산9권_정답.indd 17 15. 10. 23. 오후 2:36 38 39 32/11 15 13일차 3. (자연수) (진분수) 138~139쪽 12일차 3. (자연수) (진분수) 136~137쪽 04 1/2 07 41/2 21/2 11/2 22/3 14/5 10 13 16 19 22 31/3 25 10 28 33/19 222/5 31 34 27 01 31/3 04 2 07 21/15 10 20 13 30 16 51/3 19 27/10 22 55/6 11/3 31/4 25 28 31 18/19 34 55/12 18 쎈연산 | 9권 05 11/12 08 24/5 24/7 31/8 112/3 11 14 17 20 101/2 23 51/4 26 29 32 111/5 517/20 212/3 \ 02 3 05 2/3 08 51/3 81/3 55/8 38/9 11 14 17 20 94/5 23 33 26 113/15 41/6 29 32 14/5 35 35 11/3 06 09 8 12 63/7 15 171/2 211/3 63/10 19/13 111/4 66/11 18 21 24 27 30 33 36 15/9 1/2 63/5 62/7 03 06 09 12 15 18 101/2 72 21 22/11 24 41/2 27 101/2 112/3 30 33 42/3 36 513/15 37 162/3 40 26/7 01 04 13/4 13/4 07 111/14 10 9 13 36 16 35/9 19 27 22 171/2 25 15 28 15/16 31 22 34 61/15 37 251/2 40 8 01 5 04 07 10 11/4 1/2 15 \ 02 11/3 1/3 51/4 05 08 11 121/2 14 51/4 17 112/3 33/11 20 23 26/13 26 91/3 83/4 29 32 29/20 35 18 38 77/11 \ 02 21/3 05 11/3 08 6 11 33/7 63/10 03 3 06 11/5 33/5 76/7 61/8 55/6 41/2 21/5 15/9 41/6 09 12 15 18 21 24 27 30 33 36 39 210/13 21 140~141쪽 03 06 09 12 34/5 13/5 71/5 102/7 14일차 3. (자연수) (진분수) 216 센연산9권_정답.indd 18 15. 10. 23. 오후 2:36 15일차 3. (자연수) (진분수) 142~143쪽 17일차 4. (자연수) (대분수) 146~147쪽 15 77/8 18 111/5 21 22 24 63/7 41/8 91/3 31/3 27 30 33 36 25/14 39 55 03 71/2 44/9 06 09 37/11 102/3 33/20 12 15 18 18 13 101/2 16 31/3 41/2 19 22 12/13 25 93/5 33/4 28 31 63/4 34 81 37 125/6 40 44/5 01 5 04 84/7 07 21 10 71/2 13 26 16 112/3 , 19 20 71/2 14 111/4 17 64 20 62/3 23 21/7 26 28 29 20 32 31/5 35 315/16 38 14 \ 02 26/7 71/2 22/5 16/7 05 08 11 14 62/9 17 12 16일차 4. (자연수) (대분수) 01 12 04 27 07 101/2 \ 02 62/3 05 21/5 08 21 144~145쪽 03 81/6 06 15 09 64/5 11 14 212/3 183/4 17 51/5 20 111/3 23 53/7 61/5 26 29 111/10 32 782/3 \ 02 61/4 05 55/7 08 16 11 251/2 14 44/7 17 183/4 20 72/9 91/2 91/2 23 26 29 121/3 32 91/5 35 38 281/3 371/2 10 51/2 91/2 13 16 122/3 19 28/11 22 73/4 25 66 28 202/9 191/5 31 34 51/5 01 12 04 14 07 77/9 10 93/5 13 26 16 81/8 19 44 22 51 25 69/11 28 251/2 31 35/6 34 143/8 37 78 40 81/4 12 31/7 15 142/3 18 32/5 21 51 24 151/2 121/4 262/7 27 30 33 219 03 06 09 12 71/5 33/8 141/4 91/2 73/7 15 18 123/4 151/3 69/10 21 24 27 92/3 30 70 33 131/4 412/13 36 39 220 정답 19 216 센연산9권_정답.indd 19 15. 10. 23. 오후 2:36 18일차 4. (자연수) (대분수) \ 148~149쪽 6단계 분수의 곱셈 ⑵ 01일차 1. (진분수) (진분수) 154~155쪽 01 9 04 42/3 07 44/9 10 18 13 151/3 16 44 19 48 22 64/5 25 73/11 28 81/6 31 34 34 92 37 341/2 40 78 02 83/4 05 24 08 20 11 104/5 14 135/7 17 81/8 55/9 20 23 63/10 26 34 29 46 32 94/5 35 111/14 38 741/4 19일차 4. (자연수) (대분수) \ 02 16 05 91/3 08 102/7 191/3 202/5 282/3 11 14 17 01 111/4 04 56 07 95/7 10 39 13 91/5 16 91/4 , 19 , 18 44 20 쎈연산 | 9권 44 03 12 06 55/8 81/2 09 12 26 15 86/7 71/2 102/3 134/5 155/6 211/2 18 21 24 27 30 33 72/3 36 173/5 39 105 03 83/4 06 09 12 15 18 141/6 151/2 142/9 122/3 231/3 01 1/6 04 07 10 13 16 19 22 25 1/28 15/28 5/14 5/36 25/72 3/20 2/9 1/8 28 91 152 31 69/217 34 1/20 01 04 07 10 13 16 19 1/12 1/30 1/27 25/48 3/22 25/63 21/80 \ 02 1/15 1/45 1/3 5/28 7/10 35/54 9/25 5/18 4/25 05 08 11 14 17 20 23 26 29 42/115 32 17/60 \ 02 1/24 1/54 2/15 5/28 15/56 16/21 6/25 05 08 11 14 17 20 03 06 09 12 15 18 21 24 27 1/10 8/15 8/45 10/21 8/63 9/40 10/33 6/13 5/18 30 3/8 33 84/115 03 06 09 12 15 18 21 1/40 1/16 12/35 3/4 1/6 7/30 5/18 150~151쪽 02일차 1. (진분수) (진분수) 156~157쪽 216 센연산9권_정답.indd 20 15. 10. 23. 오후 2:36 03일차 1. (진분수) (진분수) 158~159쪽 23 26 29 32 35 38 5/28 28/75 4/51 1/9 36/85 40/63 24 27 3/35 5/24 30 1/4 33 2/15 36 39 35/117 40/81 \ 02 05 08 11 14 17 20 23 26 29 32 35 38 1/12 1/63 5/8 8/63 21/44 7/39 3/4 3/8 4/25 3/20 13/66 34/69 4/15 1/40 1/48 2/15 9/35 5/36 3/25 10/33 15/77 14/39 10/63 18/77 03 06 09 12 15 18 21 24 27 30 33 36 39 85/279 124/315 22 25 28 31 34 11/26 1/10 15/32 4/9 26/99 37 15/116 40 10/63 01 04 07 10 13 16 19 22 25 28 31 34 1/21 1/18 1/36 35/54 1/20 20/63 28/45 7/36 3/7 5/12 2/15 55/84 37 72/175 40 7/18 04일차 1. (진분수) (진분수) 160~161쪽 \ 02 1/32 1/14 4/21 27/50 15/28 05 08 11 14 17 25/44 20 23 26 29 32 3/5 3/8 2/5 3/32 7/32 35 102/161 38 8/25 1/30 1/24 1/90 3/20 5/27 7/32 32/39 22/45 1/9 5/18 10/57 01 04 07 10 13 16 19 22 25 28 31 34 37 40 28/135 27/160 2/27 \ 02 1/48 3/4 54/77 18/35 1/24 57/62 05 08 11 14 17 01 04 07 10 13 16 1/22 5/21 7/60 5/39 6/17 1/12 , 19 3/20 1/6 03 06 1/35 1/56 09 3/5 12 15 18 8/13 10/21 5/54 21 3/8 24 13/63 7/12 17/21 5/26 27 30 33 36 39 152/215 175/376 03 06 09 12 15 18 35/48 4/21 1/10 3/40 2/15 14/111 정답 21 05일차 1. (진분수) (진분수) 162~163쪽 216 센연산9권_정답.indd 21 15. 10. 23. 오후 2:36 06일차 2. (대분수) (대분수) \ 164~165쪽 13/7 41/6 03 06 09 6 12 15 18 21 24 27 30 33 81/4 42/7 33/4 41/6 33/11 48/13 423/7 195/9 02 13/5 05 15/16 08 43/8 11 411/40 14 5 17 16/7 22/3 24/5 21/8 101/12 1119/40 20 23 26 29 32 01 04 07 17/8 14/5 33/5 10 229/35 13 21/6 25/8 27/9 16 19 22 31/4 25 5 28 31 34 321/5 255/6 113/15 07일차 2. (대분수) (대분수) 166~167쪽 \ 02 11/2 05 11/4 08 12 11 91/6 14 4 17 20 41/4 92/7 01 11/2 04 19/35 07 10 13 11/6 41/5 42/5 16 23/16 19 15 22 쎈연산 | 9권 03 06 09 18/27 17/33 82/3 12 15 18 21 317/20 111/5 22/3 25/6 08일차 2. (대분수) (대분수) 168~169쪽 23 101/3 26 44/9 29 48/11 32 3 35 38 312/17 323/60 24 27 111/15 25/6 30 33 36 39 73/11 214/15 516/21 317/21 \ 02 113/32 05 15/7 08 63/10 11 14 17 20 23 26 29 32 35 38 85/9 63/5 57/9 44/7 53/7 62/3 32/3 24/15 31/19 37/27 03 11/3 06 09 12 15 18 21 24 27 30 33 36 39 17/20 95/8 71/3 61/2 161/3 45/7 83/4 182/3 82/5 24/7 312/35 212/29 22 67/8 72/9 32/9 22/9 25 28 31 34 212/13 17/33 37 40 63/5 01 13/4 04 117/60 07 113/27 10 71/2 13 102/5 16 8 19 25/14 22 119/20 25 28 31 34 37 40 51/9 41/2 37/11 55/13 27/55 35/6 216 센연산9권_정답.indd 22 15. 10. 23. 오후 2:36 09일차 2. (대분수) (대분수) 11일차 3. 세 분수의 곱셈 170~171쪽 174~175쪽 01 12/3 04 113/35 07 12/9 42/3 10 13 110/11 16 95/7 19 9 22 101/5 25 21/6 28 122/27 36/11 191/6 52/15 31 34 37 40 33/5 01 15/8 83/4 04 07 10 13 16 41/8 84/5 33/7 44/5 \ 02 111/21 05 11/4 91/6 08 11 91/3 14 5 17 6 20 213/21 23 8 26 46/7 62/3 113/21 69/10 322/23 29 32 35 38 \ 02 18/25 05 51/3 08 39/10 11 63/8 33/4 14 17 219/48 20 111/7 19 (위에서부터) , 03 06 09 12 15 18 21 24 27 111/24 17/32 28/9 53/5 41/8 71/8 57/9 45/7 51/4 30 8 33 36 39 19/10 111/5 133/65 03 06 09 15 12 317/20 12 31/7 31/2 15 18 416/21 01 1/40 04 1/112 07 5/84 7/90 10 13 4/105 16 19 7/96 1/9 3/22 22 25 111/21 28 31 34 81/4 43/8 1/30 01 1/60 04 1/126 07 1/54 7/50 10 13 9/140 16 9/52 19 7/150 22 1/15 02 05 08 1/210 1/180 9/160 11 3/28 11/35 9/140 25/126 14 17 20 23 36/11 26 29 32 11/4 25/8 22/5 02 1/320 05 08 11 14 17 20 23 1/56 15/64 2/81 36/85 13/28 5/18 3/25 03 1/270 06 1/7 09 2/45 5/36 8/27 12 15 18 21 24 27 30 33 4/105 8/45 22/9 9/16 22/21 419/20 176~177쪽 1/315 1/120 03 06 09 12 15 18 21 24 14/75 7/27 3/28 10/27 14/81 9/28 정답 23 10일차 2. (대분수) (대분수) 12일차 3. 세 분수의 곱셈 172~173쪽 216 센연산9권_정답.indd 23 15. 10. 23. 오후 2:36 25 7/27 28 11/14 31 5/22 41/2 34 37 28/21 40 5/18 26 29 32 35 38 5/14 11/6 113/27 42/13 55/14 27 1/9 30 33 36 39 11/14 22/27 81/10 51/10 13일차 3. 세 분수의 곱셈 178~179쪽 02 05 1/135 1/144 08 5/21 1/12 11/36 1/25 20/63 11 14 17 20 23 10/117 26 6/25 29 110/11 32 35 38 44/45 411/16 117/48 7/360 1/84 1/42 7/30 10/63 03 06 09 12 15 18 5/54 21 1/8 24 27 14/39 1/32 30 4/9 33 36 39 32/63 117/35 111/16 01 04 1/48 1/90 07 1/144 10 13 16 19 22 25 28 31 34 37 40 5/77 7/72 5/81 7/22 33/56 5/56 35/36 31/9 410/11 33/14 4/63 24 쎈연산 | 9권 180~181쪽 14일차 3. 세 분수의 곱셈 01 02 04 1/70 1/84 07 1/150 10 7/36 8/27 9/56 13 16 19 1/12 22 25 28 21 220 9/88 24/35 31 11/14 34 37 40 63/7 5/12 3/28 1/72 05 08 1/105 8/135 11 14 17 20 23 26 4/75 5/28 9/20 6/91 7/27 12/35 29 213/16 32 8/9 35 38 22/9 13/7 01 04 07 10 13 16 1/24 7/16 14/81 2/63 22/9 31/3 19 , 221/22 21/12 02 1/240 05 08 11 14 3/56 3/28 15/44 12/25 17 202/5 03 06 1/450 1/96 5/56 4/65 5/63 1/33 3/20 6/65 5/88 55/63 7/15 25/27 09 12 15 18 21 24 27 30 33 36 39 5/6 03 06 09 12 15 18 4/105 7/32 7/72 16/11 33/14 133/4 15일차 3. 세 분수의 곱셈 182~183쪽 216 쎈연산9권_정답.indd 24 15. 10. 30. 오전 11:24