9 加法 15 等于多少？

9 + 15 = 24

9加法15 等于 24

竖式演算

19+1524

验算

  • 用减法验算：24 − 15 = 9
  • 用减法验算：24 − 9 = 15

相关题目

9 + 14 = 23 9 + 16 = 25 9 + 13 = 22 9 + 17 = 26 9 + 12 = 21 9 + 18 = 27 9 + 11 = 20 9 + 19 = 28 8 + 15 = 23 10 + 15 = 25 11 + 15 = 26 7 + 15 = 22 12 + 15 = 27 6 + 15 = 21 13 + 15 = 28 5 + 15 = 20 1 + 23 = 24 2 + 22 = 24 3 + 21 = 24 4 + 20 = 24 5 + 19 = 24 6 + 18 = 24 34 + 28 = 62 43 + 94 = 137 34 + 8 = 42 49 + 36 = 85 31 + 74 = 105 42 + 81 = 123 32 - 8 = 24 53 - 29 = 24