15 加法 4 等于多少？

15 + 4 = 19

15加法4 等于 19

竖式演算

15+419

验算

  • 用减法验算：19 − 4 = 15
  • 用减法验算：19 − 15 = 4

相关题目

15 + 3 = 18 15 + 5 = 20 15 + 2 = 17 15 + 6 = 21 15 + 1 = 16 15 + 7 = 22 15 + 8 = 23 15 + 9 = 24 14 + 4 = 18 16 + 4 = 20 13 + 4 = 17 17 + 4 = 21 12 + 4 = 16 18 + 4 = 22 11 + 4 = 15 19 + 4 = 23 1 + 18 = 19 2 + 17 = 19 3 + 16 = 19 4 + 15 = 19 5 + 14 = 19 6 + 13 = 19 30 + 23 = 53 18 + 51 = 69 36 + 21 = 57 64 + 4 = 68 61 + 4 = 65 64 + 25 = 89 83 - 64 = 19 57 - 38 = 19