题目内容
简算:
×3.7+3.6+5.3×
.
| 3 |
| 5 |
| 3 |
| 5 |
分析:先把
×3.7+5.3×
利用乘法分配律简算,再把计算的结果加上3.6即可.
| 3 |
| 5 |
| 3 |
| 5 |
解答:解:
×3.7+3.6+5.3×
=
×3.7+5.3×
+3.6
=
×(3.7+5.3)+3.6
=0.6×9+3.6
=5.4+3.6
=9.
| 3 |
| 5 |
| 3 |
| 5 |
=
| 3 |
| 5 |
| 3 |
| 5 |
=
| 3 |
| 5 |
=0.6×9+3.6
=5.4+3.6
=9.
点评:根据算式中运算符号和数字的特点,灵活选用运算定律简算即可.
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