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

Toán Lớp 7: -(2012×9+2013)+9×2012-(1-2013)

Tháng Bảy 12, 2022 Toán học 1 Comment 0 views

Toán Lớp 7: -(2012×9+2013)+9×2012-(1-2013)

Comments ( 1 )

  1. ngocle44
    ngocle44
    12 Tháng Bảy, 2022 at 3:09 chiều
    Reply
    \color{Red}{\text{Apple}}
    – (2012 xx 9 + 2013) + 9 xx 2012 – (1 – 2013)
    = -2012 xx 9 – 2013 + 9 xx 2012 – 1 + 2013
    = (-2012 xx 9 + 9 xx 2012) + (-2013 + 2013) – 1
    = 0 + 0 – 1
    = 0 – 1
    = -1

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

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