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![](https://rs.olm.vn/images/avt/0.png?1311)
1) \(373737.73-37.737373\)
\(=37.10101.73-37.73.10101\)
\(=0\)
2) \(19.41414141-41.19191919\)
\(=19.41.1010101-41.19.1010101\)
\(=0\)
3) \(123456.456789456789-456789.123456123456\)
\(=123456.456789.1000001-456789.123456.1000001\)
\(=0\)
4) \(250.12.7\)
\(=250.4.3.7\)
\(=\left(250.4\right).\left(3.7\right)\)
\(=1000.21\)
\(=21000\)
5) \(24.125.9\)
\(=3.8.125.9\)
\(=\left(3.9\right).\left(8.125\right)\)
\(=27.1000\)
\(=27000\)
6) \(125.44.18\)
\(=125.4.11.2.9\)
\(=\left(125.4.2\right).\left(11.9\right)\)
\(=1000.99\)
\(=99000\)
7) \(8.24.6+12.4.52+2.22.24\)
\(=48.24+48.52+48.22\)
\(=48\left(24+52+22\right)\)
\(=48.98\)
\(=48\left(100-2\right)\)
\(=48.100-48.2\)
\(=4800-96\)
\(=4704\)
8) \(18.58.2-9.27.4+12.69.3\)
\(=36.58-36.27+36.69\)
\(=36\left(58-27+69\right)\)
\(=36.100=3600\)
9) \(30.85.3+18.72.5-45.37.2-9.20.10\)
\(=90.85+90.72-90.37-90.20\)
\(=90\left(85+72-37-20\right)\)
\(=90.100=9000\)
![](https://rs.olm.vn/images/avt/0.png?1311)
vì 4 là tứ,3 là tam
mà tứ chia tam là tám chia tư nên sẽ bằng 2
![](https://rs.olm.vn/images/avt/0.png?1311)
x.y.(x + y ) = 456789
x.y.x + x.y.y = 456789
x.y.x = 456789 - x.y.y
x = 456789 - y
Nhìn có vẻ sai sai thì phải
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
sai roi phai cha loi the nay : 2345/2349 > 456789/ 456793
![](https://rs.olm.vn/images/avt/0.png?1311)
ta có 2345<2349 => 2345/2349<1
456789>45793=> 456789/45793>1
=> 2345/2349<456789/45793
học tốt
![](https://rs.olm.vn/images/avt/0.png?1311)
Có 2345/2345 = 1
456789/456793 < 1
=?2345/2345>456789456793
![](https://rs.olm.vn/images/avt/0.png?1311)
123456 x 456789 =
123456*456789
=56393342784
ai k mình mình k lại