7 加法 20 等于多少？

7 + 20 = 27

7加法20 等于 27

竖式演算

7+2027

验算

  • 用减法验算：27 − 20 = 7
  • 用减法验算：27 − 7 = 20

相关题目

7 + 19 = 26 7 + 21 = 28 7 + 22 = 29 7 + 18 = 25 7 + 23 = 30 7 + 17 = 24 7 + 24 = 31 7 + 16 = 23 6 + 20 = 26 8 + 20 = 28 5 + 20 = 25 9 + 20 = 29 4 + 20 = 24 10 + 20 = 30 11 + 20 = 31 3 + 20 = 23 1 + 26 = 27 2 + 25 = 27 3 + 24 = 27 4 + 23 = 27 5 + 22 = 27 6 + 21 = 27 50 + 17 = 67 100 + 19 = 119 34 + 35 = 69 46 + 43 = 89 3 + 73 = 76 71 + 16 = 87 62 - 35 = 27 33 - 6 = 27