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

Toán Lớp 6: a) 53 . 26 + 53 . 75 – 53 b) 2886 + ( – 2021 ) + ( -2886 ) Nhanh nha!

Toán Lớp 6: a) 53 . 26 + 53 . 75 – 53
b) 2886 + ( – 2021 ) + ( -2886 )
Nhanh nha!

Comments ( 2 )

  1. a) 53 . 26 + 53 . 75 – 53
    = 53 . 26 + 53 . 75 – 53 . 1
    = 53 . (26 + 75 -1)
    =53. 100
    = 5300
    b) 2886 + ( – 2021 ) + ( -2886 )
    = 2886 + ( -2886 ) + ( – 2021 )
    = 0 + ( – 2021 )
    =  – 2021 
    XIn hay nhất! Chúc bạn học tốt!

  2. a) 53 . 26 + 53 . 75 – 53
    = 53 . 26 + 53 . 75 – 53 . 1
    = 53 . (26 + 75 -1)
    =53. 100
    = 5300
    b) 2886 + ( – 2021 ) + ( -2886 )
    = 2886 + ( -2886 ) + ( – 2021 )
    = 0 + ( – 2021 )
    =  – 2021 

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

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