13 加法 2 等于多少？

13 + 2 = 15

13加法2 等于 15

竖式演算

13+215

验算

  • 用减法验算：15 − 2 = 13
  • 用减法验算：15 − 13 = 2

相关题目

13 + 1 = 14 13 + 3 = 16 13 + 4 = 17 13 + 5 = 18 13 + 6 = 19 13 + 7 = 20 13 + 8 = 21 13 + 9 = 22 12 + 2 = 14 14 + 2 = 16 11 + 2 = 13 15 + 2 = 17 10 + 2 = 12 16 + 2 = 18 17 + 2 = 19 9 + 2 = 11 1 + 14 = 15 2 + 13 = 15 3 + 12 = 15 4 + 11 = 15 5 + 10 = 15 6 + 9 = 15 40 + 27 = 67 60 + 3 = 63 33 + 66 = 99 44 + 42 = 86 5 + 2 = 7 30 + 68 = 98 68 - 53 = 15 22 - 7 = 15