小学数学脱式计算
小学数学脱式计算
小学数学脱式计算是一种数学计算方法,它要求按照特定的顺序进行计算,通常遵循数学中的运算顺序规则,即先乘除后加减,并且要注意括号内的运算优先。下面是一些小学数学脱式计算的例子:
1. 基本运算
```
1. 10 ÷ 2 × 3 = 5 × 3 = 15
2. 24 ÷ 24 × 6 = 1 × 6 = 6
3. 72 ÷ 12 = 6
4. 30 ÷ 5 ÷ 1 = 6 ÷ 1 = 6
5. (46 - 11) ÷ 5 = 35 ÷ 5 = 7
6. (84 - 38) ÷ 23 = 46 ÷ 23 = 2
7. (65 + 76) ÷ 47 = 141 ÷ 47 = 3
8. (21 + 28) × 75 = 49 × 75 = 3675
9. 55 - 13 + 100 = 42 + 100 = 142
10. (3 + 11) ÷ 7 = 14 ÷ 7 = 2
11. 60 ÷ 6 = 10
12. 34 ÷ 34 ÷ 1 = 1 ÷ 1 = 1
13. 42 ÷ 2 ÷ 21 = 21 ÷ 21 = 1
14. (73 + 29) × 95 = 102 × 95 = 9690
```
2. 含有括号的运算
```
1. [1 - (41 + 83)] ÷ 81 = [1 - 124] ÷ 81 = -123 ÷ 81 = -1.5185
2. 91 - 125 × 54 ÷ 3 = 91 - 6750 ÷ 3 = 91 - 2250 = -2159
```
3. 含有混合运算的题目
```
1. 125 + 25 × 6 = 125 + 150 = 275
2. 120 - 60 ÷ 5 × 5 = 120 - 12 × 5 = 120 - 60 = 60
3. 1024 ÷ 16 × 3 = 64 × 3 = 192
4. (135 + 415) ÷ 5 + 16 = 550 ÷ 5 + 16 = 110 + 16 = 126
5. 164 - 13 × 5 + 85 = 164 - 65 + 85 = 99 + 85 = 184
6. 330 ÷ (65 - 50) = 330 ÷ 15 = 22
7. 128 - 6 × 8 ÷ 16 = 128 - 48 ÷ 16 = 128 - 3 = 125
8. 64 × (12 + 65 ÷ 13) = 64 × (12 + 5) = 64 × 17 = 1088
9. 5940 ÷ 45 × (798 - 616) = 132 × 182 = 24024
10. (315 × 40 - 364) ÷ 7 = (12600 - 364) ÷ 7 = 12236 ÷ 7 ≈ 1748
```
以上是几个小学数学脱式计算的例子。掌握这些计算方法和顺序可以帮助孩子们更好地解决数学问题。
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