【脱式计算题20道】在数学学习中,脱式计算是一种重要的运算方式,它要求将计算过程逐步展开,清晰地展示每一步的运算结果,便于检查和理解。为了帮助学生更好地掌握这一技能,下面整理了20道脱式计算题,并附上详细答案。
脱式计算题20道(附答案)
| 题号 | 计算题 | 脱式计算过程 | 答案 |
| 1 | 36 + 24 - 15 | 36 + 24 = 60;60 - 15 = 45 | 45 |
| 2 | 5 × 7 + 18 | 5 × 7 = 35;35 + 18 = 53 | 53 |
| 3 | 48 ÷ 6 + 9 | 48 ÷ 6 = 8;8 + 9 = 17 | 17 |
| 4 | 12 × (5 + 3) | 5 + 3 = 8;12 × 8 = 96 | 96 |
| 5 | 63 - 27 + 14 | 63 - 27 = 36;36 + 14 = 50 | 50 |
| 6 | 15 + 4 × 6 | 4 × 6 = 24;15 + 24 = 39 | 39 |
| 7 | 80 ÷ (10 - 2) | 10 - 2 = 8;80 ÷ 8 = 10 | 10 |
| 8 | 25 + 12 - 10 | 25 + 12 = 37;37 - 10 = 27 | 27 |
| 9 | 9 × 3 + 12 | 9 × 3 = 27;27 + 12 = 39 | 39 |
| 10 | 72 ÷ 8 × 3 | 72 ÷ 8 = 9;9 × 3 = 27 | 27 |
| 11 | 16 + 24 ÷ 4 | 24 ÷ 4 = 6;16 + 6 = 22 | 22 |
| 12 | 18 × 2 - 15 | 18 × 2 = 36;36 - 15 = 21 | 21 |
| 13 | 50 - (12 + 18) | 12 + 18 = 30;50 - 30 = 20 | 20 |
| 14 | 10 × 5 + 15 | 10 × 5 = 50;50 + 15 = 65 | 65 |
| 15 | 64 ÷ 8 + 12 | 64 ÷ 8 = 8;8 + 12 = 20 | 20 |
| 16 | 20 + 30 - 15 | 20 + 30 = 50;50 - 15 = 35 | 35 |
| 17 | 7 × (6 + 4) | 6 + 4 = 10;7 × 10 = 70 | 70 |
| 18 | 45 ÷ 5 + 10 | 45 ÷ 5 = 9;9 + 10 = 19 | 19 |
| 19 | 12 × 3 - 16 | 12 × 3 = 36;36 - 16 = 20 | 20 |
| 20 | 80 - 25 + 10 | 80 - 25 = 55;55 + 10 = 65 | 65 |
通过以上20道脱式计算题的练习,可以有效提升学生的运算能力与逻辑思维水平。建议在做题过程中注意运算顺序,先乘除后加减,有括号要优先计算括号内的内容。同时,养成良好的书写习惯,有助于提高准确率和解题效率。


