Page 13 - 바빠 교과서 연산_6-2_정답

정답

52단계 117쪽 54단계 124쪽

① 120 ② 8, 9 ③ 16 ① 13 cm ② 9 cm ③ 15 cm

④ 3600, 2400 ④ 13 cm ⑤ 17 cm ⑥ 19 cm
⑦ 5 cm ⑧ 15 cm

52단계 118쪽

① 15 ② 14 ③ 18 ④ 12 55단계 125쪽

① 3, 4 ② 37.2, 6
③ 3.14, 4 ④ 49.6, 8
⑤ 3, 9 ⑥ 18.84, 3

⑦ 43.4, 3.1, 7 ⑧ 37.68, 3.14, 6
.
넷째 마당 원의 넓이
53단계 121쪽
55단계 126쪽
① 3, 12 ② 3.1, 34.1
① 8 cm ② 2 cm ③ 5 cm
③ 3.14, 21.98 ④ 3.1, 49.6
④ 11 cm ⑤ 13 cm ⑥ 12 cm
⑤ 6, 36 ⑥ 3, 3.1, 18.6
⑦ 10 cm ⑧ 15 cm
⑦ 2, 3.14, 62.8 ⑧ 2, 3.1, 74.4

53단계 122쪽 56단계 127쪽

① 27 cm ② 15.7 cm ③ 37.2 cm ① 4, 4, 48 ② 5, 5, 77.5
④ 62.8 cm ⑤ 48 cm ⑥ 94.2 cm ③ 2, 2, 12.56 ④ 7, 7, 151.9
⑦ 80.6 cm ⑧ 157 cm ⑤ 10, 10, 314 ⑥ 13, 13, 507
⑦ 8, 8, 198.4 ⑧ 11, 11, 379.94

54단계 123쪽

56단계 128쪽
① 3, 5 ② 18.6, 6
③ 3.14, 3 ④ 24.8, 8 ① 27.9 cm¤ ② 243 cm¤ ③ 113.04 cm¤
⑤ 3, 14 ⑥ 12.56, 4 ④ 375.1 cm¤ ⑤ 588 cm¤ ⑥ 446.4 cm¤
⑦ 40.3, 3.1, 13 ⑧ 21.98, 3.14, 7 ⑦ 706.5 cm¤ ⑧ 1962.5 cm¤

149