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![](https://rs.olm.vn/images/avt/0.png?1311)
\(12,5:0,5+12,5:0,25+12,5:0,125-12,5\times4\)
\(=12,5\times2+12,5\times4+12,5\times8-12,5\times4\)
\(=12,5\times\left(2+4+8-4\right)\)
\(=12,5\times10\)
\(=125\)
_HT_
![](https://rs.olm.vn/images/avt/0.png?1311)
= 12,5 x 2 + 12,5 x 4 + 12,5 x 8 - 12,5 x 4
= 12,5 x (2+4+8-4)
= 12,5 x 10
= 125
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có:
\(12,5:0,5+12,5:0,25+12,5:0,125-12,5×4\)
\(=12,5:\left(0,5+0,25+0,125\right)-12,5×4\)
\(=12,5×10\)
\(=125\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
ta có :
\(12.5:0.5+12.5:0.25+12.5:0.125-12.5\times4=12.5\times2+12.5\times4+12.5\times8-12.5\times4\)
\(=12.5\times\left(2+4+8-4\right)=12.5\times10=125\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(12,5:0,25+12,5:0,125-25\)
\(=12,5:\left(0,25-0,125\right)-25\)
\(=12,5:0,125-25\)
\(=100-25\)
\(=75\)
\(12,5:0,25+12,5:0,125-25\)
\(=12,5:\left(0,25-0,125\right)-25\)
\(=12,5:0,125-25\)
\(=100-25\)
\(=75\)
![](https://rs.olm.vn/images/avt/0.png?1311)