题目内容
11-
-(
×
+
×
)
| 7 |
| 11 |
| 4 |
| 11 |
| 8 |
| 15 |
| 4 |
| 11 |
| 7 |
| 15 |
分析:先把括号里面算式运用乘法分配律计算,再按照从左到右顺序计算即可解答.
解答:解:11-
-(
×
+
×
),
=11-
-
×(
+
),
=11-
-
,
=10
-
,
=10
.
| 2 |
| 7 |
| 4 |
| 11 |
| 8 |
| 15 |
| 4 |
| 11 |
| 7 |
| 15 |
=11-
| 2 |
| 7 |
| 4 |
| 11 |
| 8 |
| 15 |
| 7 |
| 15 |
=11-
| 2 |
| 7 |
| 4 |
| 11 |
=10
| 5 |
| 7 |
| 4 |
| 11 |
=10
| 29 |
| 77 |
点评:本题主要考查学生依据四则运算计算方法,以及乘法分配律解决问题的能力.
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