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

Toán Lớp 5: (75%+0,65+1/4+35%)x(1/4×2+25%x3+0,25X5)

Home/ Toán Lớp 5: (75%+0,65+1/4+35%)x(1/4×2+25%x3+0,25X5)

Toán Lớp 5: (75%+0,65+1/4+35%)x(1/4×2+25%x3+0,25X5)

Tháng Mười Hai 18, 2022 Toán học 1 Comment 0 views

Toán Lớp 5: (75%+0,65+1/4+35%)x(1/4×2+25%x3+0,25X5)

Comments ( 1 )

  1. minhhaanh
    minhhaanh
    18 Tháng Mười Hai, 2022 at 10:17 chiều
    Reply
    ( 75% + 0,65 + 1/4 + 35%) xx ( 1/4 xx 2 + 25% xx 3 + 0,25 xx 5)
    = ( 3/4 + 13/20 + 1/4 + 7/20) xx ( 1/4 xx 2 + 1/4 xx 3 + 1/4 xx 5)
    =[ ( 3/4 + 1/4) + ( 13/20 + 7/20)] xx [ 1/4 xx ( 2 + 3 + 5)]
    = ( 1 + 1) xx (1/4 xx 10)
    = 2 xx 10/4
    = 20/4
    = 5

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

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