Page 17 - 구구단_정답_public

정답

50단계 114쪽 52단계 119쪽

① 0 ② 2 ③ 0 ④ 9 ⑤ 5 ① 63 ② 72 ③ 27 ④ 30 ⑤ 63
⑥ 1 ⑦ 0 ⑧ 20 ⑨ 90 ⑩ 0 ⑥ 0 ⑦ 64 ⑧ 56 ⑨ 81 ⑩ 54

⑪ 4 ⑫ 60 ⑬ 70 ⑭ 50 ⑮ 8 ⑪ 48 ⑫ 54 ⑬ 42 ⑭ 56 ⑮ 80
⑯ 0 ⑰ 30 ⑱ 40
53단계 120쪽

50단계 115쪽 ① 45 ② 72 ③ 24 ④ 56 ⑤ 54

⑥ 54 ⑦ 40 ⑧ 42 ⑨ 18 ⑩ 0
① 30 ② 90 ③ 9 ④ 0 ⑤ 6
⑪ 49 ⑫ 80 ⑬ 81 ⑭ 64 ⑮ 21
⑥ 10 ⑦ 80 ⑧ 0 ⑨ 0 ⑩ 50
⑯ 42 ⑰ 56 ⑱ 24
⑪ 4 ⑫ 3 ⑬ 0 ⑭ 20 ⑮ 7

⑯ 5 ⑰ 40 ⑱ 0 53단계 121쪽

① 42 ② 30 ③ 36 ④ 48 ⑤ 30
51단계 116쪽
⑥ 63 ⑦ 0 ⑧ 40 ⑨ 27 ⑩ 28
①
* 1 2 3 4 5 6 7 8 9 ⑪ 56 ⑫ 56 ⑬ 72 ⑭ 63 ⑮ 90
1 1 2 3 4 5 6 7 8 9
54단계 122쪽
②
* 1 2 3 4 5 6 7 8 9
6단 7단 8단 9단
10 10 20 30 40 50 60 70 80 90
③ 1 6 1 7 1 8 1 9
* 3 2 1 4 7 6 9 8 5

10 30 20 10 40 70 60 90 80 50 2 12 2 14 2 16 2 18
0 0 0 0 0 0 0 0 0 0
3 18 3 21 3 24 3 27
1 3 2 1 4 7 6 9 8 5

4 24 4 28 4 32 4 36
51단계 117쪽
5 30 5 35 5 40 5 45
① 4 ② 10
6 36 6 42 6 48 6 54
52단계 118쪽
7 42 7 49 7 56 7 63
① 12 ② 28 ③ 24 ④ 36 ⑤ 50
⑥ 0 ⑦ 40 ⑧ 42 ⑨ 36 ⑩ 18 8 48 8 56 8 64 8 72

⑪ 49 ⑫ 45 ⑬ 72 ⑭ 35 ⑮ 48
9 54 9 63 9 72 9 81
⑯ 56 ⑰ 60 ⑱ 48

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