9 加法 40 等于多少？

9 + 40 = 49

9加法40 等于 49

竖式演算

9+4049

验算

  • 用减法验算：49 − 40 = 9
  • 用减法验算：49 − 9 = 40

相关题目

9 + 39 = 48 9 + 41 = 50 9 + 38 = 47 9 + 42 = 51 9 + 37 = 46 9 + 43 = 52 9 + 44 = 53 9 + 36 = 45 8 + 40 = 48 10 + 40 = 50 11 + 40 = 51 7 + 40 = 47 12 + 40 = 52 6 + 40 = 46 13 + 40 = 53 5 + 40 = 45 1 + 48 = 49 2 + 47 = 49 3 + 46 = 49 4 + 45 = 49 5 + 44 = 49 6 + 43 = 49 60 + 4 = 64 1 + 17 = 18 73 + 100 = 173 30 + 46 = 76 10 + 23 = 33 34 + 20 = 54 96 - 47 = 49 64 - 15 = 49