31 减法 15 等于多少？

31 - 15 = 16

31减法15 等于 16

竖式演算

21131-1516

验算

  • 用加法验算：16 + 15 = 31

相关题目

31 - 14 = 17 31 - 16 = 15 31 - 13 = 18 31 - 17 = 14 31 - 12 = 19 31 - 18 = 13 31 - 11 = 20 31 - 19 = 12 30 - 15 = 15 32 - 15 = 17 29 - 15 = 14 33 - 15 = 18 34 - 15 = 19 28 - 15 = 13 35 - 15 = 20 27 - 15 = 12 17 - 1 = 16 18 - 2 = 16 19 - 3 = 16 20 - 4 = 16 21 - 5 = 16 22 - 6 = 16 56 - 7 = 49 70 - 67 = 3 55 - 19 = 36 85 - 37 = 48 51 - 5 = 46 81 - 66 = 15 13 + 3 = 16 16 × 1 = 16