Page 17 - 바빠 교과서 연산_5-1_정답

정답

56단계 129쪽 58단계 134쪽

① 3, 9 ② 5, 10 ③ 7, 14
120 m¤ 144 m¤
④ 8, 6, 24 ⑤ 5, 12, 30 ⑥ 14, 4, 28
⑦ 6, 7, 21 12 m
8 m
12 m
56단계 130쪽 15 m

① 12 cm¤ ② 12 cm¤ ③ 33 cm¤
55 m¤
④ 50 cm¤ ⑤ 16 cm¤ ⑥ 30 cm¤ 11 m 48 m¤
⑦ 56 cm¤ ⑧ 80 cm¤ 10 m 6 m

8 m
90 m¤
57단계 131쪽
80 m¤
13 m
① 3, 9 ② 2, 10 ③ 2, 20
9 m
7 m
20 m
④ 7, 4, 18 ⑤ 6, 8, 44 ⑥ 7, 5, 40
8 m
⑦ 12, 4, 34 ⑧ 9, 10, 65
57단계 132쪽

① 32 cm¤ ② 55 cm¤ ③ 50 cm¤

④ 34 cm¤ ⑤ 63 cm¤ ⑥ 40 cm¤
⑦ 140 cm¤ ⑧ 70 cm¤

58단계 133쪽

① 70 ② 36 ③ 30 ④ 110

151