12 加法 8 等于多少？

12 + 8 = 20

12加法8 等于 20

竖式演算

112+820

验算

  • 用减法验算：20 − 8 = 12
  • 用减法验算：20 − 12 = 8

相关题目

12 + 7 = 19 12 + 9 = 21 12 + 6 = 18 12 + 10 = 22 12 + 11 = 23 12 + 5 = 17 12 + 12 = 24 12 + 4 = 16 11 + 8 = 19 13 + 8 = 21 10 + 8 = 18 14 + 8 = 22 15 + 8 = 23 9 + 8 = 17 16 + 8 = 24 8 + 8 = 16 1 + 19 = 20 2 + 18 = 20 3 + 17 = 20 4 + 16 = 20 5 + 15 = 20 6 + 14 = 20 78 + 15 = 93 49 + 43 = 92 33 + 19 = 52 58 + 15 = 73 27 + 45 = 72 12 + 96 = 108 80 - 60 = 20 74 - 54 = 20