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2,1 x 100 =210
25,08 x 100=2508
4,061 x 100=406,1
7,2 x 1000=7200
5,32 x 100=532
0,894x1000=894
9,63 x 10=96,3
5,328x10=53,28
2,1 x 100 = 210
25,08 x 100 = 2508
4,061 x 100 = 406100
7,2 x 1000 = 7200
5,32 x 100 = 532
0,894 x 1000 = 894
9,63 x 10 = 96,3
5,328 x 10 = 53.28
![](https://rs.olm.vn/images/avt/0.png?1311)
\(1,4x10=14\)
\(25,08x100=2508\)
\(0,894x1000=894\)
\(7,69x50=384,5\)
\(12,6x800=10080\)
\(82,16x40=3286,4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
25,08 x 98 - 25,08 x 25 + 25,08 x 26 + 25,08
= 25,08 x 98 - 25,08 x 25 + 25,08 x 26 + 25,08 x 1
= 25,08 x ( 98 - 25 + 26 + 1 )
= 25,08 x 100
= 2508
![](https://rs.olm.vn/images/avt/0.png?1311)
1,4 x 10 = 140
2,1 x 100 = 210
7,2 x 1000 = 7200
9,63 x 10 = 96,3
25,08 x 100 = 2508
5,32 x 1000 = 5320
![](https://rs.olm.vn/images/avt/0.png?1311)
=>\(x\times4+x\times8+x\times2=1,4\)
\(\Rightarrow x\times\left(4+8+2\right)=1,4\)
\(\Rightarrow x\times14=1,4\)
\(\Rightarrow x=1,4\div14\)
\(\Rightarrow x=0,1\)
x : 0,25 + x : 0,125 + x : 0,5 = 1,4
x : ( 0,25 + 0,125 + 0,5 ) = 1,4
x : 0,875 = 1,4
x = 1,4 x 0,875
x = 1,225
Chúc bn hc tốt <3
![](https://rs.olm.vn/images/avt/0.png?1311)
1,4+X+X=15
1,4+X+Xx1=15
{1,4+1}xX=15
2,4xX=15
X=15:2,4
X=6,25
\(4+2x=15\Leftrightarrow2x=15-4\Leftrightarrow2x=11\Leftrightarrow x=\frac{11}{2}\)
1,4 x 100 = 140
25,08 x 10 = 250,8
@Trunglaai?
1,4x 100=140
25,08x 10=250,8