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

Toán Lớp 6: Tính hợp lí (toán6) :512.(2-128)-128.(-512)

Toán Lớp 6: Tính hợp lí (toán6)
:512.(2-128)-128.(-512)

Comments ( 2 )

  1. 512.(2-128)-128.(-512)
    = 512 . (2-128) + 128 . 512
    = 512 . ( 2 – 128 + 128)
    =512*2
    =1024

  2. =512×2-128×212-(-512)x128
    =512×2-128×512+512×128
    =512×2+0=1024

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