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

Toán Lớp 6: (-40)+67+2^3.5+(-67)-(-2021) Giúpmik thêm lần nữa =))

Toán Lớp 6: (-40)+67+2^3.5+(-67)-(-2021)
Giúpmik thêm lần nữa =))

Comments ( 2 )

  1. ( -40 ) + 67 + 2^3. 5 + ( -67 ) – ( -2021 )
    = -40 + 67 + 8. 5 – 67 + 2021
    = -40 + 67 + 40 – 67 + 2021
    = ( -40 + 40 ) + ( 67 – 67 ) + 2021
    = 0 + 0 + 2021
    = 2021
     

  2. (-40) +67+2^3 .5+(-67)-(-2021)
    =-40 +67+8.5 -67+2021
    =-40+67+40-67+2021
    =2021 +(40-40)+(67-67)
    =2021 +0+0
    =2021

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