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

Toán Lớp 6: Tính tổng : S=1+(-2)+(-3)+4+5+(-6)+(-7)+8+9+…+(-2019)+2020+2021+2022

Toán Lớp 6: Tính tổng :
S=1+(-2)+(-3)+4+5+(-6)+(-7)+8+9+…+(-2019)+2020+2021+2022

Comments ( 1 )

  1. $S=1+2-3-4+5+6-7-8+9+…..+2018-2019-2020+2021+2022$
    $S=(1+2-3-4)+(5+6-7-8)+….+(2017+2018-2019-2020)+2021+2022$
    $S=-4+(-4)+….+(-4)+4043$
    $S=-4 . 531+4043$
    $S=-2124+4043$
    $S= 1919$
     

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