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Nguyễn Huy Hoàng

22/08/2017 at 09:36
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50+100+10+50+900=?

30+80+40+70+60+20=?

20+50+40+30+10=?



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    Help you solve math 22/08/2017 at 09:40

    a , 50+100+10+50+900

    =(50+50)+(100+900)+10

    =100+1000+10

    =1100+10

    =1110

    b ,30+80+40+70+60+20

    =(30+70)+(80+20)+(40+60)

    =100+100+100

    =100 . 3

    =300

    c ,20+50+40+30+10

    =(20+30+40+10)+50

    =100+50

    =150

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  • ...
    Trần Quỳnh Anh 27/12/2017 at 19:32

    1200.

    300.

    150.



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