题目内容
(
+
)×48.
| 5 |
| 6 |
| 3 |
| 8 |
分析:运用乘法的分配律变成
×48+
×48计算简便.
| 5 |
| 6 |
| 3 |
| 8 |
解答:解:(
+
)×48,
=
×48+
×48,
=40+18,
=58.
| 5 |
| 6 |
| 3 |
| 8 |
=
| 5 |
| 6 |
| 3 |
| 8 |
=40+18,
=58.
点评:考查了运算定律与简便运算,灵活运用所学的运算律简便计算.
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