70 减法 40 等于多少？

70 - 40 = 30

70减法40 等于 30

竖式演算

70-4030

验算

  • 用加法验算：30 + 40 = 70

相关题目

70 - 39 = 31 70 - 41 = 29 70 - 38 = 32 70 - 42 = 28 70 - 37 = 33 70 - 43 = 27 70 - 44 = 26 70 - 36 = 34 69 - 40 = 29 71 - 40 = 31 68 - 40 = 28 72 - 40 = 32 67 - 40 = 27 73 - 40 = 33 74 - 40 = 34 66 - 40 = 26 31 - 1 = 30 32 - 2 = 30 33 - 3 = 30 34 - 4 = 30 35 - 5 = 30 36 - 6 = 30 52 - 22 = 30 98 - 86 = 12 17 - 13 = 4 58 - 13 = 45 69 - 37 = 32 68 - 46 = 22 21 + 9 = 30 29 + 1 = 30