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 57 - 19 = 38 40 - 39 = 1 62 - 57 = 5 90 - 3 = 87 71 - 7 = 64 35 - 8 = 27 3 + 15 = 18 17 + 1 = 18