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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 4: a) 2008+2008+2008+2008-2008*4 b) 88-8+8+8+…+8 11 số 8

Toán Lớp 4: a) 2008+2008+2008+2008-2008*4
b) 88-8+8+8+…+8 11 số 8

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
     a)2008+2008+2008+2008-2008×4
        =2008×4-2008×4
        =(2008-2008)×4
        =0×4
        =0
    b)88-8+8+8+8+8+8+8+8+8+8+8
    =88-8×11
    =88-88
    =0
    CHÚC EM HỌC TỐT!
    CHỊ XIN HAY NHẤT NHÉ!

  2. $ a) 2008 + 2008 +2008 +2008 – 2008 ×4$
    $=(2008+2008+2008+2008)-4×2008$
    $=4×2008-4×2008$
    $=0$
    $b) 88-8+8+8+…+8$
    $=(88-8)+(8+8+…+8)$
    $=80+8×10$
    $=80×2$
    $=160$
     

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222-9+11+12:2*14+14 = ? ( )

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