题目内容
计算:3.75×(2
-1
)+85%÷3
.
| 3 |
| 5 |
| 2 |
| 3 |
| 2 |
| 5 |
分析:本题根据四则混合运算的运算顺序计算即可:先算乘除,再算加减,有括号的要先算括号里面的.
解答:解:3.75×(2
-1
)+85%÷3
=
×(
-
)+
÷
,
=
×
+
÷
,
=
+
×
,
=
+
,
=
+
,
=
.
| 3 |
| 5 |
| 2 |
| 3 |
| 2 |
| 5 |
=
| 15 |
| 4 |
| 39 |
| 15 |
| 25 |
| 15 |
| 85 |
| 100 |
| 17 |
| 5 |
=
| 15 |
| 4 |
| 14 |
| 15 |
| 85 |
| 100 |
| 17 |
| 5 |
=
| 7 |
| 2 |
| 85 |
| 100 |
| 5 |
| 17 |
=
| 7 |
| 2 |
| 1 |
| 4 |
=
| 14 |
| 4 |
| 1 |
| 4 |
=
| 15 |
| 4 |
点评:在含有带分数的算式中,一般要将带分数化为假分数进行计算.
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