30 减法 2 等于多少？

30 - 2 = 28

30减法2 等于 28

竖式演算

21030-228

验算

  • 用加法验算：28 + 2 = 30

相关题目

30 - 1 = 29 30 - 3 = 27 30 - 4 = 26 30 - 5 = 25 30 - 6 = 24 30 - 7 = 23 30 - 8 = 22 30 - 9 = 21 29 - 2 = 27 31 - 2 = 29 32 - 2 = 30 28 - 2 = 26 33 - 2 = 31 27 - 2 = 25 34 - 2 = 32 26 - 2 = 24 29 - 1 = 28 31 - 3 = 28 32 - 4 = 28 33 - 5 = 28 34 - 6 = 28 35 - 7 = 28 70 - 54 = 16 20 - 13 = 7 60 - 4 = 56 84 - 46 = 38 60 - 35 = 25 21 + 7 = 28 6 + 22 = 28 14 + 14 = 28