30 减法 10 等于多少？

30 - 10 = 20

30减法10 等于 20

竖式演算

30-1020

验算

  • 用加法验算：20 + 10 = 30

相关题目

30 - 11 = 19 30 - 9 = 21 30 - 12 = 18 30 - 8 = 22 30 - 13 = 17 30 - 7 = 23 30 - 14 = 16 30 - 6 = 24 29 - 10 = 19 31 - 10 = 21 28 - 10 = 18 32 - 10 = 22 33 - 10 = 23 27 - 10 = 17 34 - 10 = 24 26 - 10 = 16 21 - 1 = 20 22 - 2 = 20 23 - 3 = 20 24 - 4 = 20 25 - 5 = 20 26 - 6 = 20 67 - 44 = 23 73 - 43 = 30 68 - 2 = 66 79 - 39 = 40 56 - 10 = 46 65 - 43 = 22 1 × 20 = 20 16 + 4 = 20