3 加法 20 等于多少？

3 + 20 = 23

3加法20 等于 23

竖式演算

3+2023

验算

  • 用减法验算：23 − 20 = 3
  • 用减法验算：23 − 3 = 20

相关题目

3 + 19 = 22 3 + 21 = 24 3 + 22 = 25 3 + 18 = 21 3 + 23 = 26 3 + 17 = 20 3 + 24 = 27 3 + 16 = 19 2 + 20 = 22 4 + 20 = 24 1 + 20 = 21 5 + 20 = 25 6 + 20 = 26 7 + 20 = 27 8 + 20 = 28 9 + 20 = 29 1 + 22 = 23 2 + 21 = 23 4 + 19 = 23 5 + 18 = 23 6 + 17 = 23 7 + 16 = 23 72 + 5 = 77 3 + 52 = 55 61 + 24 = 85 67 + 12 = 79 42 + 55 = 97 53 + 15 = 68 76 - 53 = 23 61 - 38 = 23