28 减法 1 等于多少？

28 - 1 = 27

28减法1 等于 27

竖式演算

28-127

验算

  • 用加法验算：27 + 1 = 28

相关题目

28 - 2 = 26 28 - 3 = 25 28 - 4 = 24 28 - 5 = 23 28 - 6 = 22 28 - 7 = 21 28 - 8 = 20 28 - 9 = 19 29 - 1 = 28 27 - 1 = 26 30 - 1 = 29 26 - 1 = 25 31 - 1 = 30 25 - 1 = 24 32 - 1 = 31 24 - 1 = 23 29 - 2 = 27 30 - 3 = 27 31 - 4 = 27 32 - 5 = 27 33 - 6 = 27 34 - 7 = 27 99 - 92 = 7 67 - 42 = 25 98 - 3 = 95 92 - 70 = 22 67 - 57 = 10 35 - 5 = 30 3 × 9 = 27 5 + 22 = 27