30 加法 10 等于多少？

30 + 10 = 40

30加法10 等于 40

竖式演算

30+1040

验算

  • 用减法验算：40 − 10 = 30
  • 用减法验算：40 − 30 = 10

相关题目

30 + 11 = 41 30 + 9 = 39 30 + 12 = 42 30 + 8 = 38 30 + 13 = 43 30 + 7 = 37 30 + 14 = 44 30 + 6 = 36 29 + 10 = 39 31 + 10 = 41 28 + 10 = 38 32 + 10 = 42 33 + 10 = 43 27 + 10 = 37 34 + 10 = 44 26 + 10 = 36 1 + 39 = 40 2 + 38 = 40 3 + 37 = 40 4 + 36 = 40 5 + 35 = 40 6 + 34 = 40 100 + 23 = 123 63 + 26 = 89 8 + 11 = 19 57 + 10 = 67 51 + 2 = 53 61 + 2 = 63 81 - 41 = 40 96 - 56 = 40