题目内容
4.3÷[(3
-1.5)×1
]+
.
| 2 |
| 7 |
| 3 |
| 25 |
| 1 |
| 3 |
分析:先算小括号里面的减法,再算中括号里面的乘法,再算除法,最后算加法.
解答:解:4.3÷[(3
-1.5)×1
]+
,
=4.3÷[
×1
]+
,
=4.3÷2+
,
=2.15+
,
=2
.
| 2 |
| 7 |
| 3 |
| 25 |
| 1 |
| 3 |
=4.3÷[
| 25 |
| 14 |
| 3 |
| 25 |
| 1 |
| 3 |
=4.3÷2+
| 1 |
| 3 |
=2.15+
| 1 |
| 3 |
=2
| 29 |
| 60 |
点评:考查了四则混合运算.注意运算顺序和运算法则,然后再进一步计算.
练习册系列答案
相关题目