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

Toán Lớp 6: a)(24-234)+(234-24-77) b)271-[(-43)+271-(-17)

Toán Lớp 6: a)(24-234)+(234-24-77)
b)271-[(-43)+271-(-17)

Comments ( 2 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    a)
    (24 – 234) + (234 – 24 – 77)
    = 24 – 234 + 234 – 24 – 77
    = 24 – 24 – 234 + 234 – 77
    = (24 – 24) + (-234 + 234) – 77
    = 0 + 0 – 77
    = -77
    b)
    271 – [(-43) + 271 – (-17)]
    = 271 – [(-43) + 271 + 17]
    = 271 – (228 + 17)
    = 271 – 245
    = 26
    @Ryan
     

  2. $\text{a)(24-234)+(234-24-77)}$
    = $\text{-210 + 133}$
    = $\text{-77}$
    $\text{b)271-[(-43)+271-(-17)}$
    = $\text{271-245}$
    = $\text{26}$

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

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