1 加法 27 等于多少？

1 + 27 = 28

1加法27 等于 28

竖式演算

1+2728

验算

  • 用减法验算：28 − 27 = 1
  • 用减法验算：28 − 1 = 27

相关题目

1 + 26 = 27 1 + 28 = 29 1 + 29 = 30 1 + 25 = 26 1 + 30 = 31 1 + 24 = 25 1 + 31 = 32 1 + 23 = 24 2 + 27 = 29 3 + 27 = 30 4 + 27 = 31 5 + 27 = 32 6 + 27 = 33 7 + 27 = 34 8 + 27 = 35 9 + 27 = 36 2 + 26 = 28 3 + 25 = 28 4 + 24 = 28 5 + 23 = 28 6 + 22 = 28 7 + 21 = 28 41 + 2 = 43 24 + 25 = 49 72 + 25 = 97 20 + 78 = 98 5 + 2 = 7 32 + 21 = 53 61 - 33 = 28 2 × 14 = 28