题目内容
(2000?汉阳区)
×
+
÷8
-
×
=
.
| 1 |
| 5 |
| 1 |
| 3 |
| 8 |
| 5 |
| 7 |
| 3 |
| 3 |
| 4 |
| 1 |
| 5 |
| 133 |
| 1860 |
| 133 |
| 1860 |
分析:根据题意,把除法写成乘法的形式,再根据乘法分配律进行简算.
解答:解:
×
+
÷8
-
×
,
=
×
+
×
-
×
,
=
×
+
×
-
×
,
=
×(
+
-
),
=
×
,
=
.
故答案为:
.
| 1 |
| 5 |
| 1 |
| 3 |
| 8 |
| 5 |
| 7 |
| 3 |
| 3 |
| 4 |
| 1 |
| 5 |
=
| 1 |
| 5 |
| 1 |
| 3 |
| 8 |
| 5 |
| 3 |
| 31 |
| 3 |
| 4 |
| 1 |
| 5 |
=
| 1 |
| 5 |
| 1 |
| 3 |
| 1 |
| 5 |
| 24 |
| 31 |
| 3 |
| 4 |
| 1 |
| 5 |
=
| 1 |
| 5 |
| 1 |
| 3 |
| 24 |
| 31 |
| 3 |
| 4 |
=
| 1 |
| 5 |
| 133 |
| 372 |
=
| 133 |
| 1860 |
故答案为:
| 133 |
| 1860 |
点评:此题主要考查分数四则混合运算的运算顺序和应用运算定律进行简便计算.
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