20 加法 2 等于多少？

20 + 2 = 22

20加法2 等于 22

竖式演算

20+222

验算

  • 用减法验算：22 − 2 = 20
  • 用减法验算：22 − 20 = 2

相关题目

20 + 1 = 21 20 + 3 = 23 20 + 4 = 24 20 + 5 = 25 20 + 6 = 26 20 + 7 = 27 20 + 8 = 28 20 + 9 = 29 19 + 2 = 21 21 + 2 = 23 22 + 2 = 24 18 + 2 = 20 23 + 2 = 25 17 + 2 = 19 24 + 2 = 26 16 + 2 = 18 1 + 21 = 22 2 + 20 = 22 3 + 19 = 22 4 + 18 = 22 5 + 17 = 22 6 + 16 = 22 1 + 42 = 43 44 + 24 = 68 100 + 35 = 135 2 + 47 = 49 53 + 13 = 66 80 + 6 = 86 57 - 35 = 22 97 - 75 = 22