1 加法 28 等于多少？

1 + 28 = 29

1加法28 等于 29

竖式演算

1+2829

验算

  • 用减法验算：29 − 28 = 1
  • 用减法验算：29 − 1 = 28

相关题目

1 + 29 = 30 1 + 27 = 28 1 + 30 = 31 1 + 26 = 27 1 + 31 = 32 1 + 25 = 26 1 + 32 = 33 1 + 24 = 25 2 + 28 = 30 3 + 28 = 31 4 + 28 = 32 5 + 28 = 33 6 + 28 = 34 7 + 28 = 35 8 + 28 = 36 9 + 28 = 37 2 + 27 = 29 3 + 26 = 29 4 + 25 = 29 5 + 24 = 29 6 + 23 = 29 7 + 22 = 29 37 + 62 = 99 1 + 77 = 78 30 + 22 = 52 12 + 54 = 66 53 + 35 = 88 24 + 41 = 65 87 - 58 = 29 95 - 66 = 29