80 减法 50 等于多少？

80 - 50 = 30

80减法50 等于 30

竖式演算

80-5030

验算

  • 用加法验算：30 + 50 = 80

相关题目

80 - 49 = 31 80 - 51 = 29 80 - 48 = 32 80 - 52 = 28 80 - 47 = 33 80 - 53 = 27 80 - 46 = 34 80 - 54 = 26 79 - 50 = 29 81 - 50 = 31 78 - 50 = 28 82 - 50 = 32 77 - 50 = 27 83 - 50 = 33 84 - 50 = 34 76 - 50 = 26 31 - 1 = 30 32 - 2 = 30 33 - 3 = 30 34 - 4 = 30 35 - 5 = 30 36 - 6 = 30 87 - 55 = 32 97 - 70 = 27 30 - 10 = 20 54 - 42 = 12 98 - 67 = 31 85 - 10 = 75 16 + 14 = 30 23 + 7 = 30