题目内容
________-0.625=![]() | ________÷0.25=![]() |
0.75 ![](http://thumb.1010pic.com/pic5/latex/480.png)
分析:(1)已知差和减数求被减数,被减数=减数+差;
(2)已知商和除数求被除数,被除数=商×除数.
解答:(1)0.625+
=0.625+0.125=0.75;
所以0.75-0.625=
;
(2)0.25×
=
,
所以
÷0.25=
.
故答案为:0.75;
.
点评:解决本题主要根据减法和除法各部分间的关系,要灵活运用.
![](http://thumb.1010pic.com/pic5/latex/480.png)
分析:(1)已知差和减数求被减数,被减数=减数+差;
(2)已知商和除数求被除数,被除数=商×除数.
解答:(1)0.625+
![](http://thumb.1010pic.com/pic5/latex/112.png)
所以0.75-0.625=
![](http://thumb.1010pic.com/pic5/latex/112.png)
(2)0.25×
![](http://thumb.1010pic.com/pic5/latex/69.png)
![](http://thumb.1010pic.com/pic5/latex/582709.png)
所以
![](http://thumb.1010pic.com/pic5/latex/480.png)
![](http://thumb.1010pic.com/pic5/latex/69.png)
故答案为:0.75;
![](http://thumb.1010pic.com/pic5/latex/480.png)
点评:解决本题主要根据减法和除法各部分间的关系,要灵活运用.
![](http://thumb2018.1010pic.com/images/loading.gif)
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