第四单元 100以内的加法和减法(一)-【优佳好】2023-2024学年一年级下册数学口算计算能力提升（苏教版）

单元四 　 第 1 课时　 整十数加、减整十数(1) 1 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　20 + 30 = 60 - 30 = 70 + 20 = 50 + 50 = 80 - 50 = 20 + 50 = 70 - 30 = 50 - 20 = 90 - 60 = 40 + 40 = 30 + 60 = 50 + 30 = 30 + 40 = 80 - 20 = 60 - 40 = 90 - 50 = 90 - 40 = 70 - 20 = 90 - 30 = 50 + 10 = 80 - 30 = 90 + 10 = 20 + 60 = 60 - 20 = 40 - 40 = 50 + 40 = 50 - 40 = 80 + 10 = 80 - 10 = 20 + 20 = 30 - 30 = 90 - 20 = 30 + 30 = 70 - 40 = 90 - 80 = 70 - 10 = 20 + 40 = 80 - 70 = 40 + 60 = 70 - 50 = 70 - 40 - 20 = 100 - 40 + 20 = 50 + 30 - 40 = 90 - 60 - 20 = 30 + 20 - 10 = 40 + 50 - 60 = 80 - 20 + 4 = 30 + 10 + 50 = 　 　 　 　 　 　 　 　 　 　 　 　 82 单元四 　 第 2 课时　 整十数加、减整十数(2) 1 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　90 - 30 = 70 - 60 = 30 + 50 = 20 - 10 = 10 + 30 = 50 - 10 = 60 - 30 = 40 - 30 = 70 - 10 = 40 - 10 = 70 - 30 = 30 + 60 = 60 - 20 = 80 - 40 = 30 + 40 = 90 - 60 = 10 + 50 = 70 - 50 = 20 + 30 = 60 + 10 = 20 + 20 = 50 - 40 = 50 - 20 = 70 - 20 = 40 + 40 = 60 + 20 = 80 - 60 = 70 + 20 = 60 - 60 = 80 - 50 = 80 - 30 = 30 + 30 = 70 - 70 = 70 - 40 = 20 + 80 = 40 - 40 = 50 - 50 = 50 - 30 = 10 + 90 = 80 + 10 = 10 + 30 + 50 = 80 - 40 - 20 = 10 + 40 + 20 = 60 - 20 - 20 = 80 - 50 - 20 = 20 + 30 + 40 = 30 + 30 + 6 = 80 - 30 + 7 = 　 　 　 　 　 　 　 　 　 　 　 　 92 单元四 　 第 3 课时　 两位数加整十数、一位数(不进位)(1) 1 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　32 + 5 = 32 + 50 = 45 + 40 = 45 + 4 = 30 + 40 = 32 + 4 = 54 + 3 = 58 + 30 = 36 + 30 = 36 + 3 = 66 + 3 = 24 + 30 = 53 + 6 = 24 + 3 = 4 + 35 = 5 + 43 = 60 + 10 = 60 + 17 = 20 + 41 = 28 + 40 = 30 + 5 = 36 + 50 = 20 + 70 = 20 + 72 = 72 + 2 = 54 + 30 = 82 + 4 = 8 + 40 = 6 + 21 = 68 + 30 = 60 + 21 = 76 + 2 = 76 + 20 = 26 + 70 = 40 + 37 = 73 + 4 = 34 + 20 = 7 + 42 = 40 + 7 = 40 + 27 = 45 + 2 = 45 + 20 = 25 + 30 = 22 + 6 = 　 　 　 　 　 　 　 　 　 　 03 单元四 　 第 4 课时　 两位数加整十数、一位数(不进位)(2) 1 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　45 + 2 = 45 + 20 = 26 + 2 = 26 + 20 = 73 + 20 = 73 + 2 = 32 + 30 = 32 + 3 = 20 + 35 = 54 + 5 = 60 + 35 = 30 + 25 = 4