8 加法 15 等于多少？

8 + 15 = 23

8加法15 等于 23

竖式演算

18+1523

验算

  • 用减法验算：23 − 15 = 8
  • 用减法验算：23 − 8 = 15

相关题目

8 + 14 = 22 8 + 16 = 24 8 + 13 = 21 8 + 17 = 25 8 + 12 = 20 8 + 18 = 26 8 + 11 = 19 8 + 19 = 27 7 + 15 = 22 9 + 15 = 24 6 + 15 = 21 10 + 15 = 25 11 + 15 = 26 5 + 15 = 20 12 + 15 = 27 4 + 15 = 19 1 + 22 = 23 2 + 21 = 23 3 + 20 = 23 4 + 19 = 23 5 + 18 = 23 6 + 17 = 23 98 + 50 = 148 81 + 78 = 159 51 + 76 = 127 91 + 34 = 125 79 + 50 = 129 8 + 45 = 53 68 - 45 = 23 65 - 42 = 23