7 加法 5 等于多少？

7 + 5 = 12

7加法5 等于 12

竖式演算

17+512

验算

  • 用减法验算：12 − 5 = 7
  • 用减法验算：12 − 7 = 5

相关题目

7 + 4 = 11 7 + 6 = 13 7 + 3 = 10 7 + 7 = 14 7 + 2 = 9 7 + 8 = 15 7 + 1 = 8 7 + 9 = 16 6 + 5 = 11 8 + 5 = 13 5 + 5 = 10 9 + 5 = 14 4 + 5 = 9 10 + 5 = 15 11 + 5 = 16 3 + 5 = 8 1 + 11 = 12 2 + 10 = 12 3 + 9 = 12 4 + 8 = 12 5 + 7 = 12 6 + 6 = 12 26 + 5 = 31 15 + 90 = 105 4 + 57 = 61 85 + 70 = 155 97 + 80 = 177 56 + 73 = 129 90 - 78 = 12 54 - 42 = 12