2*2
K
Khách
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![](https://rs.olm.vn/images/avt/0.png?1311)
NT
4
![](https://rs.olm.vn/images/avt/0.png?1311)
4 tháng 3 2017
1+2+3+4+5+6+7+8+9
=(1+9)+(2+8)+(3+7)+(4+6)+5
=10+10+10+10+5
=45
BH
2
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
TS
7
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
3 tháng 3 2017
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
Alan Walker -
![](https://rs.olm.vn/images/avt/0.png?1311)
4 chứ mấy
ai k mình mình k lại
2 * 2 = 4 nhá