题目内容
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
分析:先把除法变成乘法,然后运用乘法结合律简算.
解答:解:
×
÷
×
,
=
×
×3×
,
=(
×3)×(
×
),
=1×
,
=
.
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
=
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
=(
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
=1×
| 1 |
| 16 |
=
| 1 |
| 16 |
点评:本题要注意运算顺序,不能先算除号左右的乘法,再算除法,不要比数字迷惑.
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