6 加法 21 等于多少？

6 + 21 = 27

6加法21 等于 27

竖式演算

6+2127

验算

  • 用减法验算：27 − 21 = 6
  • 用减法验算：27 − 6 = 21

相关题目

6 + 20 = 26 6 + 22 = 28 6 + 19 = 25 6 + 23 = 29 6 + 24 = 30 6 + 18 = 24 6 + 25 = 31 6 + 17 = 23 5 + 21 = 26 7 + 21 = 28 4 + 21 = 25 8 + 21 = 29 3 + 21 = 24 9 + 21 = 30 2 + 21 = 23 10 + 21 = 31 1 + 26 = 27 2 + 25 = 27 3 + 24 = 27 4 + 23 = 27 5 + 22 = 27 7 + 20 = 27 32 + 31 = 63 12 + 24 = 36 69 + 30 = 99 10 + 59 = 69 62 + 4 = 66 27 + 52 = 79 53 - 26 = 27 9 × 3 = 27