12 加法 1 等于多少？

12 + 1 = 13

12加法1 等于 13

竖式演算

12+113

验算

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

相关题目

12 + 2 = 14 12 + 3 = 15 12 + 4 = 16 12 + 5 = 17 12 + 6 = 18 12 + 7 = 19 12 + 8 = 20 12 + 9 = 21 11 + 1 = 12 13 + 1 = 14 10 + 1 = 11 14 + 1 = 15 15 + 1 = 16 9 + 1 = 10 16 + 1 = 17 8 + 1 = 9 1 + 12 = 13 2 + 11 = 13 3 + 10 = 13 4 + 9 = 13 5 + 8 = 13 6 + 7 = 13 50 + 40 = 90 45 + 13 = 58 43 + 25 = 68 39 + 60 = 99 42 + 50 = 92 52 + 34 = 86 33 - 20 = 13 13 × 1 = 13