第4单元 表内乘法(一)-【优佳好】2023-2024学年二年级上册数学口算计算能力提升（人教版）

单元 4 　 第 1 课时　 乘法的初步认识 2 年级 上 R 22 + 16 = 78 - 32 = 70 - 8 = 51 + 15 = 35 + 42 = 36 - 32 = 98 - 64 = 11 + 55 = 28 + 13 = 36 + 50 = 90 - 50 = 47 - 34 = 55 - 23 = 96 - 72 = 18 + 61 = 26 + 31 = 46 + 16 = 65 - 18 = 47 - 8 = 99 - 55 = 67 - 32 = 96 - 58 = 58 + 15 = 39 + 34 = 70 - 24 = 73 - 35 = 46 + 29 = 45 + 26 = 85 - 39 = 63 - 18 = 72 + 22 = 53 + 42 = 71 - 49 = 90 - 48 = 63 - 22 = 75 - 58 = 62 - 57 = 36 + 36 = 48 + 27 = 54 - 29 = 75 - 46 = 82 + 17 = 47 + 36 = 97 - 25 - 8 = 36 + 54 - 30 = 58 + (20 - 10) = 23 单元 4 　 第 2 课时　 练习课 2 年级 上 R 41 + 30 = 31 + 48 = 79 - 42 = 27 + 36 = 27 - 14 = 42 - 17 = 51 - 27 = 36 + 35 = 73 - 48 = 27 + 16 = 53 - 29 = 51 - 24 = 66 - 24 = 36 + 16 = 36 + 17 = 52 - 28 = 45 + 26 = 16 + 15 = 26 - 18 = 72 - 19 = 63 - 47 = 45 + 22 = 87 - 21 = 42 + 27 = 35 - 28 = 31 - 7 = 94 - 14 = 80 - 22 = 54 + 26 = 63 + 17 = 46 + 26 = 58 - 32 = 60 - 48 = 66 - 49 = 41 - 32 = 68 + 27 = 83 - 74 = 33 + 45 = 54 - 29 = 93 - 42 = 58 - 39 = 36 + 48 = 55 - 18 = 45 + 16 - 21 = 17 + 26 + 25 = 74 - (20 + 9) = 33 单元 4 　 第 3 课时　 5 的乘法口诀 2 年级 上 R 35 + 26 = 99 - 71 = 26 + 24 = 76 - 43 = 48 - 27 = 94 - 14 = 62 + 33 = 16 + 31 = 33 + 12 = 94 - 53 = 80 - 20 = 25 + 60 = 25 + 14 = 44 - 9 = 12 + 27 = 77 - 12 = 50 - 32 = 61 - 41 = 78 - 22 = 10 + 25 = 18 + 36 = 78 - 23 = 18 + 30 = 14 + 42 = 70 - 25 = 59 - 48 = 38 - 19 = 3 × 5 = 81 - 19 = 5 × 1 = 4 × 5 = 5 × 2 = 64 - 22 = 5 × 5 = 1 × 5 = 5 × 3 = 75 - 42 = 5 × 4 = 2 × 5 = 48 + 36 = 49 + 19 = 53 - 48 = 66 - 37 = 37 + 48 - 22 = 19 + 28 + 25 = 45 - (53 - 26) = 43 单元 4 　 第 4 课时　 练习课 2 年级 上 R 13 + 22 = 29 + 50 = 84 - 44 = 68 - 9 = 27 + 14 = 15 + 6 = 34 + 46 = 67 - 25 = 63 - 22 = 17 + 71 = 76 + 18 = 54 - 31 = 73 - 46 = 76 - 25 = 73 + 9 = 17 + 61 = 81 - 29 = 20 + 30 = 93 - 25 = 31 + 63 = 78 - 48 = 11 + 26 = 70 - 35 = 39 - 34 = 35 + 15 = 85 - 75 = 16 + 31 = 42 - 36 = 66 - 27 = 5 × 3 = 2 × 5 = 1 × 5 = 80 - 45 = 5 × 4 = 4 × 5 = 5 × 2 = 53 - 22 = 3 × 5 = 5 × 1 = 5 × 5 = 49 + 38 = 72 - 35 = 81 - 46 = 37 + 26 + 17 = 80 - 46 - 27 = 98 - (36 - 17) = 53 单元 4