Page 16 - 바빠 교과서 연산_5-1_정답

정답

50단계 115쪽 53단계 123쪽

2 11 11 43 ① 2, 8 ② 4, 12 ③ 6, 24
① 1 ② 5 ③ ④ 1
9 20 24 50
④ 2, 7, 14 ⑤ 2, 4 ⑥ 3, 3, 9
⑦ 5, 5, 25 ⑧ 8, 8, 64
50단계 116쪽

1 19 5 11
① 5 ② 4 ③ 4 ④ 4 53단계 124쪽
12 24 12 12
① 15 cm¤ ② 48 cm¤ ③ 36 cm¤
④ 50 cm¤ ⑤ 16 cm¤ ⑥ 49 cm¤
⑦ 36 cm¤ ⑧ 81 cm¤

.
다섯째 마당 다각형의 둘레와 넓이 54단계 125쪽
51단계 119쪽
① 3, 12 ② 2, 10 ③ 3, 18
① 3, 12 ② 4, 20 ③ 6, 30 ④ 9, 4, 36 ⑤ 7, 5, 35 ⑥ 3, 9, 27

④ 3, 6, 18 ⑤ 2, 8, 16 ⑥ 5, 7, 35 ⑦ 10, 4, 40 ⑧ 6, 8, 48
⑦ 4, 9, 36
54단계 126쪽

51단계 120쪽
① 18 cm¤ ② 24 cm¤ ③ 35 cm¤
① 3, 5 ② 4, 3 ③ 5, 6 ④ 21 cm¤ ⑤ 81 cm¤ ⑥ 44 cm¤
④ 24, 6, 4 ⑤ 27, 3, 9 ⑥ 48, 6, 8 ⑦ 60 cm¤ ⑧ 72 cm¤
⑦ 28, 7, 4 ⑧ 40, 8, 5
55단계 127쪽

52단계 121쪽
① 2, 5 ② 4, 6 ③ 3, 12
① 3, 16 ② 2, 18 ③ 4, 20 ④ 6, 4, 12 ⑤ 8, 6, 24 ⑥ 5, 6, 15
④ 10, 9, 38 ⑤ 3, 14 ⑥ 4, 20 ⑦ 6, 9, 27 ⑧ 10, 5, 25

⑦ 8, 5, 26 ⑧ 11, 7, 36
55단계 128쪽
52단계 122쪽
① 10 cm¤ ② 7 cm¤ ③ 18 cm¤
① 4, 12 ② 4, 20 ③ 6, 4, 24 ④ 18 cm¤ ⑤ 20 cm¤ ⑥ 33 cm¤

④ 8, 4, 32 ⑤ 4, 28 ⑥ 4, 16 ⑦ 12 cm¤ ⑧ 100 cm¤
⑦ 10, 4, 40 ⑧ 12, 4, 48

150