题目内容
(
-0.5)÷37+24×(
-
)．
| 1 |
| 2 |
| 7 |
| 8 |
| 1 |
| 3 |
分析：本题根据四则混合运算的运算顺序计算即可：先算乘除，再算加减，有括号的要先算括号里面的．后半部分可根据乘法分配律计算．
解答：解：(
-0.5)÷37+24×(
-
)．
=0÷37+24×
-24×
，
=0+21-8，
=13．
| 1 |
| 2 |
| 7 |
| 8 |
| 1 |
| 3 |
=0÷37+24×
| 7 |
| 8 |
| 1 |
| 3 |
=0+21-8，
=13．
点评：完成本题要注意分析式中数据的特点，运用合适的方法计算．
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