题目内容
| 7 |
| 8 |
| 12 |
| 13 |
| 7 |
| 8 |
分析:把除法转化为乘法,运用乘法分配律简算即可.
解答:解:
×
+
÷13,
=
×
+
×
,
=
×(
+
),
=
×1,
=
.
| 7 |
| 8 |
| 12 |
| 13 |
| 7 |
| 8 |
=
| 7 |
| 8 |
| 12 |
| 13 |
| 7 |
| 8 |
| 1 |
| 13 |
=
| 7 |
| 8 |
| 12 |
| 13 |
| 1 |
| 13 |
=
| 7 |
| 8 |
=
| 7 |
| 8 |
点评:完成此题,注意分析式中数据,运用所学的运算定律灵活简算.
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