21 减法 2 等于多少？

21 - 2 = 19

21减法2 等于 19

竖式演算

11121-219

验算

  • 用加法验算：19 + 2 = 21

相关题目

21 - 1 = 20 21 - 3 = 18 21 - 4 = 17 21 - 5 = 16 21 - 6 = 15 21 - 7 = 14 21 - 8 = 13 21 - 9 = 12 20 - 2 = 18 22 - 2 = 20 23 - 2 = 21 19 - 2 = 17 24 - 2 = 22 18 - 2 = 16 25 - 2 = 23 17 - 2 = 15 20 - 1 = 19 22 - 3 = 19 23 - 4 = 19 24 - 5 = 19 25 - 6 = 19 26 - 7 = 19 80 - 34 = 46 81 - 34 = 47 80 - 37 = 43 63 - 27 = 36 80 - 55 = 25 93 - 18 = 75 13 + 6 = 19 4 + 15 = 19