题目内容
4.44÷4
+
÷
+
×4
.
| 5 |
| 8 |
| 31 |
| 37 |
| 25 |
| 111 |
| 36 |
| 37 |
| 11 |
| 25 |
分析:4.44化成假分数是
,4
化成假分数是
,然后再根据乘法分配律进行简算.
| 111 |
| 25 |
| 11 |
| 25 |
| 111 |
| 25 |
解答:解:4.44÷4
+
÷
+
×4
,
=
×
+
×
+
×
,
=
×(
+
+
),
=
×
,
=9.
| 5 |
| 8 |
| 31 |
| 37 |
| 25 |
| 111 |
| 36 |
| 37 |
| 11 |
| 25 |
=
| 111 |
| 25 |
| 8 |
| 37 |
| 31 |
| 37 |
| 111 |
| 25 |
| 36 |
| 37 |
| 111 |
| 25 |
=
| 111 |
| 25 |
| 8 |
| 37 |
| 31 |
| 37 |
| 36 |
| 37 |
=
| 111 |
| 25 |
| 75 |
| 37 |
=9.
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
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