100 减法 80 等于多少？

100 - 80 = 20

100减法80 等于 20

竖式演算

010100-8020

验算

  • 用加法验算：20 + 80 = 100

相关题目

100 - 79 = 21 100 - 81 = 19 100 - 78 = 22 100 - 82 = 18 100 - 83 = 17 100 - 77 = 23 100 - 84 = 16 100 - 76 = 24 99 - 80 = 19 98 - 80 = 18 97 - 80 = 17 96 - 80 = 16 95 - 80 = 15 94 - 80 = 14 93 - 80 = 13 92 - 80 = 12 21 - 1 = 20 22 - 2 = 20 23 - 3 = 20 24 - 4 = 20 25 - 5 = 20 26 - 6 = 20 72 - 28 = 44 81 - 47 = 34 55 - 9 = 46 15 - 7 = 8 54 - 26 = 28 90 - 5 = 85 2 × 10 = 20 12 + 8 = 20