21 减法 13 等于多少？

21 - 13 = 8

21减法13 等于 8

竖式演算

11121-138

验算

  • 用加法验算：8 + 13 = 21

相关题目

21 - 12 = 9 21 - 14 = 7 21 - 11 = 10 21 - 15 = 6 21 - 10 = 11 21 - 16 = 5 21 - 9 = 12 21 - 17 = 4 20 - 13 = 7 22 - 13 = 9 23 - 13 = 10 19 - 13 = 6 24 - 13 = 11 18 - 13 = 5 25 - 13 = 12 17 - 13 = 4 9 - 1 = 8 10 - 2 = 8 11 - 3 = 8 12 - 4 = 8 13 - 5 = 8 14 - 6 = 8 76 - 18 = 58 55 - 7 = 48 47 - 38 = 9 90 - 4 = 86 55 - 19 = 36 93 - 64 = 29 1 + 7 = 8 7 + 1 = 8