题目内容
5.85×1
-2.5÷4
+3
.
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 4 |
分析:通过观察,先算乘法和除法,再算加法.在算加法时,把3
化为小数,再计算.
| 1 |
| 4 |
解答:解:5.85×1
-2.5÷4
+3
,
=5.85×
-2.5×
+3
,
=7.8-0.1+3.25,
=10.95.
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 4 |
=5.85×
| 4 |
| 3 |
| 1 |
| 25 |
| 1 |
| 4 |
=7.8-0.1+3.25,
=10.95.
点评:考此题查了分数的四则混合运算,注意运算顺序和运算法则,同时注意数字转化.
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