30 加法 8 等于多少？

30 + 8 = 38

30加法8 等于 38

竖式演算

30+838

验算

  • 用减法验算：38 − 8 = 30
  • 用减法验算：38 − 30 = 8

相关题目

30 + 7 = 37 30 + 9 = 39 30 + 6 = 36 30 + 10 = 40 30 + 11 = 41 30 + 5 = 35 30 + 12 = 42 30 + 4 = 34 29 + 8 = 37 31 + 8 = 39 28 + 8 = 36 32 + 8 = 40 33 + 8 = 41 27 + 8 = 35 34 + 8 = 42 26 + 8 = 34 1 + 37 = 38 2 + 36 = 38 3 + 35 = 38 4 + 34 = 38 5 + 33 = 38 6 + 32 = 38 77 + 12 = 89 22 + 6 = 28 7 + 92 = 99 11 + 21 = 32 61 + 13 = 74 90 + 9 = 99 43 - 5 = 38 55 - 17 = 38