21 减法 3 等于多少？

21 - 3 = 18

21减法3 等于 18

竖式演算

11121-318

验算

  • 用加法验算：18 + 3 = 21

相关题目

21 - 2 = 19 21 - 4 = 17 21 - 1 = 20 21 - 5 = 16 21 - 6 = 15 21 - 7 = 14 21 - 8 = 13 21 - 9 = 12 22 - 3 = 19 20 - 3 = 17 23 - 3 = 20 19 - 3 = 16 24 - 3 = 21 18 - 3 = 15 25 - 3 = 22 17 - 3 = 14 19 - 1 = 18 20 - 2 = 18 22 - 4 = 18 23 - 5 = 18 24 - 6 = 18 25 - 7 = 18 72 - 3 = 69 15 - 6 = 9 97 - 39 = 58 90 - 4 = 86 84 - 17 = 67 72 - 15 = 57 10 + 8 = 18 18 × 1 = 18