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

Toán Lớp 4: 1.Tính nhanh: a,2800:2:5 b,125 x 16 c, 328 x 5 : 8 x 16

Toán Lớp 4: 1.Tính nhanh:
a,2800:2:5
b,125 x 16
c, 328 x 5 : 8 x 16

Comments ( 2 )

  1. a) 2800 : 2 : 5     3280
    = (2800 : 2) : 5
    = 280 
    b) 125 x 16
    = 2000
    c) 328 x 5 : 8 x 16
    = (328 x 5) : 8 x 16
    = (328 x 5 : 8) x 16
    = 3280
    $#Toán$
    $@RyanNguyenisthebest$
     

  2. a) 2800 : 2 : 5
    = 2800 : (2×5)
    = 2800 : 10
    = 280
    b) 125 x 16 = 2000
    c) 328 x 5 : 8 x 16
     = (328 : 8) x ( 5 x 16 )
    = 41 x 80
    = 3280

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