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 8 + 37 = 45 79 + 9 = 88 35 + 72 = 107 90 + 96 = 186 18 + 9 = 27 36 + 4 = 40 3 × 8 = 24 66 - 42 = 24