1 加法 12 等于多少？

1 + 12 = 13

1加法12 等于 13

竖式演算

1+1213

验算

  • 用减法验算：13 − 12 = 1
  • 用减法验算：13 − 1 = 12

相关题目

1 + 11 = 12 1 + 13 = 14 1 + 10 = 11 1 + 14 = 15 1 + 15 = 16 1 + 9 = 10 1 + 16 = 17 1 + 8 = 9 2 + 12 = 14 3 + 12 = 15 4 + 12 = 16 5 + 12 = 17 6 + 12 = 18 7 + 12 = 19 8 + 12 = 20 9 + 12 = 21 2 + 11 = 13 3 + 10 = 13 4 + 9 = 13 5 + 8 = 13 6 + 7 = 13 7 + 6 = 13 100 + 17 = 117 31 + 68 = 99 54 + 32 = 86 3 + 93 = 96 50 + 35 = 85 46 + 43 = 89 98 - 85 = 13 16 - 3 = 13