7 加法 23 等于多少？

7 + 23 = 30

7加法23 等于 30

竖式演算

17+2330

验算

  • 用减法验算：30 − 23 = 7
  • 用减法验算：30 − 7 = 23

相关题目

7 + 22 = 29 7 + 24 = 31 7 + 21 = 28 7 + 25 = 32 7 + 20 = 27 7 + 26 = 33 7 + 19 = 26 7 + 27 = 34 6 + 23 = 29 8 + 23 = 31 5 + 23 = 28 9 + 23 = 32 4 + 23 = 27 10 + 23 = 33 11 + 23 = 34 3 + 23 = 26 1 + 29 = 30 2 + 28 = 30 3 + 27 = 30 4 + 26 = 30 5 + 25 = 30 6 + 24 = 30 18 + 66 = 84 79 + 3 = 82 70 + 89 = 159 41 + 98 = 139 45 + 91 = 136 62 + 44 = 106 2 × 15 = 30 42 - 12 = 30