第3单元 图形的运动（一）-【优佳好】2023-2024学年二年级下册数学口算计算能力提升（人教版）

单元 3 　 第 1 课时　 轴对称图形(教材 P29) 2 年级 下 R 3 ÷ 3 = 7 × 5 = 2 × 4 = 5 × 5 = 7 + 56 = 15 ÷ 3 = 5 × 4 = 18 ÷ 3 = 7 × 2 = 36 ÷ 6 = 15 ÷ 5 = 6 × 8 = 4 × 4 = 8 × 8 = 4 × 6 = 36 + 15 = 38 + 16 = 25 ÷ 5 = 5 × 9 = 12 ÷ 6 = 24 ÷ 4 = 25 + 23 = 8 ÷ 2 = 72 + 24 = 80 - 9 = 9 × 7 = 24 ÷ 6 = 20 ÷ 5 = 40 - 32 = 12 ÷ 3 = 34 - 12 = 20 ÷ 4 = 5 ÷ 5 = 43 + 32 = 8 ÷ 4 = 36 + 4 = 3 ÷ 1 = 8 × 3 = 16 ÷ 4 = 5 × 8 = 47 + 36 = 　 　 　 　 　 　 　 70 - 56 = 　 　 　 　 　 　 　 83 - 29 = 51 + 49 = 91 - 47 = 22 + 48 = 61 单元 3 　 第 2 课时　 平移(教材 P30) 2 年级 下 R 40 - 15 = 30 + 40 = 5 × 6 = 17 - 8 = 72 - 30 = 4 × 6 = 25 ÷ 5 = 65 - 42 = 18 ÷ 6 = 22 + 36 = 20 ÷ 5 = 65 - 7 = 9 ÷ 3 = 12 ÷ 6 = 18 ÷ 3 = 15 ÷ 3 = 20 - 6 = 43 + 22 = 36 ÷ 6 = 45 - 9 = 8 ÷ 4 = 12 ÷ 3 = 40 - 25 = 30 ÷ 5 = 24 + 16 = 2 × 9 = 62 + 30 = 12 ÷ 4 = 7 × 2 = 22 + 10 = 64 - 24 = 15 ÷ 5 = 36 + 44 = 6 × 6 = 16 ÷ 4 = 5 × 7 = 20 ÷ 4 = 8 × 8 = 15 + 35 = 10 ÷ 2 = 43 + 27 = 　 　 　 　 　 　 　 60 - 35 = 　 　 　 　 　 　 　 54 + 39 = 60 - 17 + 36 = 18 + 25 + 46 = 93 - 37 - 46 = 71 单元 3 　 第 3 课时　 旋转(教材 P31) 2 年级 下 R 4 ÷ 4 = 20 ÷ 4 = 12 ÷ 3 = 20 ÷ 5 = 4 + 88 = 30 ÷ 6 = 7 × 2 = 6 ÷ 3 = 5 × 5 = 18 + 36 = 9 ÷ 3 = 18 ÷ 6 = 24 ÷ 4 = 15 ÷ 5 = 10 ÷ 5 = 3 × 3 = 8 ÷ 2 = 4 ÷ 2 = 80 - 30 = 15 + 36 = 63 - 9 = 61 - 15 = 6 ÷ 2 = 57 + 19 = 9 × 2 = 7 × 7 = 32 + 18 = 25 ÷ 5 = 42 + 30 = 3 × 7 = 77 - 14 = 55 - 40 = 8 ÷ 4 = 16 + 16 = 6 × 8 = 8 × 9 = 50 - 42 = 6 × 9 = 30 ÷ 5 = 16 ÷ 4 = 75 - 36 = 　 　 　 　 　 　 　 48 + 48 = 　 　 　 　 　 　 　 29 + 45 = 80 - 37 = 41 + 59 = 72 - 58 = 81 单元 3 　 第 4 课时　 剪一剪(教材 P32) 2 年级 下 R 73 - 50 = 48 + 20 = 39 - 23 = 15 ÷ 3 = 8 ÷ 4 = 38 + 26 = 12 ÷ 3 = 22 + 27 = 2 × 9 = 30 ÷ 6 = 50 - 25 = 7 × 6 = 16 ÷ 4 = 12 ÷ 4 = 6 ÷ 3 = 80 - 15 = 3 × 5 = 45 - 32 = 18 ÷ 6 = 8 ÷ 2 = 9 ÷ 3 = 40 - 17 = 4 × 5 = 10 ÷ 2 = 9 × 9 = 45 + 7 = 4 × 8 = 72 - 20 = 10 ÷ 5 = 4 ÷ 1 = 3 × 7 = 35 + 20 = 6 × 9 = 4 × 2 = 24 ÷ 6 = 20 ÷ 4 = 36 ÷ 6 = 4 × 4 = 8 × 4 = 6 ÷ 2 = 36 + 45 = 　 　 　 　 　 　 　 72 - 28 = 　 　 　 　 　 　 　 83 - 49 = 15 + 23 + 36 = 97 - 53 - 28 = 63 + 29 - 47 = 91 单元 3 　 第 5 课时　 练习课(教材 P33) 2 年级 下 R