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

Toán Lớp 6: giúp mik ( – 2 ) . ( – 4) – 4.5 ( – 4 ). 8 – 6. ( – 8) 3 ( – 6 ) – 4 ( 5) 5 (-7) – 6.8 (-9).(-2) – 5.7 4 (-7) – 8 (-3)

Toán Lớp 6: giúp mik
( – 2 ) . ( – 4) – 4.5
( – 4 ). 8 – 6. ( – 8)
3 ( – 6 ) – 4 ( 5)
5 (-7) – 6.8
(-9).(-2) – 5.7
4 (-7) – 8 (-3)

Comments ( 2 )

  1. @Bơ 
    Giải đáp+Lời giải và giải thích chi tiết:
    a) ( – 2 ) . ( – 4) – 4.5
    =8-20
    =-12
    b) (-4).8-6.(-8)
    =-32+48
    =16
    c) 3(-6)-4(5)
    =-18-20
    =-38
    d) 5(-7)-6.8
    =-35-48
    =-83
    e) (-9).(-2) – 5.7

    =18-35

    =-17

    f) 4 (-7) – 8 (-3)
    =-28+24
    =-4
     

  2. (-2) . (-4) – 4 . 5
    = 8 – 20
    = -12
    ————–
    (-4) . 8 – 6 . (-8)
    = (-32) – (-48)
    = 16
    —————-
    3 . (-6) – 4 . (-5)
    = (-18) – (-20)
    = 2
    ——————-
    5 . (-7) – 6 . 8
    = (-35) – 48
    = -83
    ———————–
    (-9) . (-2) – 5 . 7
    = 18 – 35
    = -17
    ————————
    4 . (-7) – 8 . (-3)
    = (-21) – (-24)
    = 3

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