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 87 - 1 = 86 98 - 48 = 50 93 - 20 = 73 94 - 82 = 12 79 - 2 = 77 68 - 43 = 25 1 × 1 = 1 54 - 52 = 2 44 - 20 = 24 36 - 16 = 20 96 - 14 = 82 59 - 40 = 19 78 - 66 = 12