题目内容
18.25×11
-17
÷(1-
)
| 4 |
| 5 |
| 1 |
| 4 |
| 54 |
| 59 |
分析:根据四则混合运算的运算顺序和计算法则进行计算即可.
解答:解:18.25×11
-17
÷(1-
),
=18
×11
-17
÷
,
=
×
-
×
,
=(
-
)×
,
=1×
,
=11
.
| 4 |
| 5 |
| 1 |
| 4 |
| 54 |
| 59 |
=18
| 1 |
| 4 |
| 4 |
| 5 |
| 1 |
| 4 |
| 5 |
| 59 |
=
| 73 |
| 4 |
| 59 |
| 5 |
| 69 |
| 4 |
| 59 |
| 5 |
=(
| 73 |
| 4 |
| 69 |
| 4 |
| 59 |
| 5 |
=1×
| 59 |
| 5 |
=11
| 4 |
| 5 |
点评:细心计算,灵活使用运算定律进行简算.
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