Luffy xyz 123
20/08/2017 at 19:13-
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Luffy xyz 123 20/08/2017 at 19:13
50 + 300 + 50 + 100
= ( 50 + 50 ) + ( 300 + 100 )
= 100 + 400
= 500
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Vũ Hà Vy Anh 21/08/2017 at 07:5550 + 300 + 50 + 100
= ( 50 + 50 ) + ( 300 + 100 )
= 100 + 400
= 500
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Đỗ Thị Minh Anh 20/08/2017 at 21:3150 + 300 + 50 + 100
= ( 50 + 50 ) + ( 100 + 300 )
= 100 + 400
= 500
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Dao Trong Luan 20/08/2017 at 19:2850 + 300 + 50 + 100
= [50 + 50] + 300 + 100
= 100 + 300 + 100
= 500
