题目内容
(8
-10.5×
)÷4
.
| 5 |
| 6 |
| 4 |
| 5 |
| 1 |
| 3 |
分析:先算小括号里面的乘法,再算小括号里面的减法,最后算除法.
解答:解:(8
-10.5×
)÷4
,
=(8
-8
)÷4
,
=
÷4
,
=
.
| 5 |
| 6 |
| 4 |
| 5 |
| 1 |
| 3 |
=(8
| 5 |
| 6 |
| 2 |
| 5 |
| 1 |
| 3 |
=
| 13 |
| 30 |
| 1 |
| 3 |
=
| 1 |
| 10 |
点评:四则运算,先弄清运算顺序,然后再进一步计算即可;能简算的要简算.
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