3 减法 2 等于多少？

3 - 2 = 1

3减法2 等于 1

竖式演算

3-21

验算

  • 用加法验算：1 + 2 = 3

相关题目

3 - 1 = 2 3 - 3 = 0 2 - 2 = 0 4 - 2 = 2 5 - 2 = 3 6 - 2 = 4 7 - 2 = 5 8 - 2 = 6 9 - 2 = 7 10 - 2 = 8 2 - 1 = 1 4 - 3 = 1 5 - 4 = 1 6 - 5 = 1 7 - 6 = 1 8 - 7 = 1 25 - 24 = 1 68 - 30 = 38 64 - 33 = 31 54 - 23 = 31 8 - 4 = 4 68 - 20 = 48 1 × 1 = 1 95 - 81 = 14 81 - 57 = 24 47 - 1 = 46 94 - 34 = 60 58 - 3 = 55 94 - 19 = 75