4 加法 15 等于多少？

4 + 15 = 19

4加法15 等于 19

竖式演算

4+1519

验算

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

相关题目

4 + 14 = 18 4 + 16 = 20 4 + 13 = 17 4 + 17 = 21 4 + 12 = 16 4 + 18 = 22 4 + 11 = 15 4 + 19 = 23 3 + 15 = 18 5 + 15 = 20 2 + 15 = 17 6 + 15 = 21 1 + 15 = 16 7 + 15 = 22 8 + 15 = 23 9 + 15 = 24 1 + 18 = 19 2 + 17 = 19 3 + 16 = 19 5 + 14 = 19 6 + 13 = 19 7 + 12 = 19 51 + 27 = 78 1 + 81 = 82 12 + 53 = 65 51 + 48 = 99 31 + 37 = 68 2 + 26 = 28 65 - 46 = 19 89 - 70 = 19