21 减法 6 等于多少？

21 - 6 = 15

21减法6 等于 15

竖式演算

11121-615

验算

  • 用加法验算：15 + 6 = 21

相关题目

21 - 5 = 16 21 - 7 = 14 21 - 4 = 17 21 - 8 = 13 21 - 3 = 18 21 - 9 = 12 21 - 2 = 19 21 - 10 = 11 20 - 6 = 14 22 - 6 = 16 19 - 6 = 13 23 - 6 = 17 18 - 6 = 12 24 - 6 = 18 25 - 6 = 19 17 - 6 = 11 16 - 1 = 15 17 - 2 = 15 18 - 3 = 15 19 - 4 = 15 20 - 5 = 15 22 - 7 = 15 68 - 29 = 39 93 - 6 = 87 80 - 31 = 49 80 - 65 = 15 90 - 67 = 23 40 - 37 = 3 14 + 1 = 15 6 + 9 = 15