题目内容
6.72×1
-4
÷0.65.
| 2 |
| 3 |
| 1 |
| 3 |
分析:把0.65化为分数,先算乘除,再算减法.
解答:解:6.72×1
-4
÷0.65
=6.72×
-
÷
=11.2-
×
=
-
=
.
| 2 |
| 3 |
| 1 |
| 3 |
=6.72×
| 5 |
| 3 |
| 13 |
| 3 |
| 13 |
| 20 |
=11.2-
| 13 |
| 3 |
| 20 |
| 13 |
=
| 56 |
| 5 |
| 20 |
| 3 |
=
| 68 |
| 15 |
点评:此题考查了分数的四则混合运算,注意运算顺序和运算法则以及数字转化.
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