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

Toán Lớp 5: 0,3579 + 0,8 x 0,04 x 1,25 x 25 + 0,6421

Toán Lớp 5: 0,3579 + 0,8 x 0,04 x 1,25 x 25 + 0,6421

Comments ( 2 )

  1. 0,3579 + 0,8 xx 0,04 xx 1,25 xx 25 + 0,6421
    = ( 0,3579 + 0,6421 ) + ( 0,8 xx 1,25 ) xx ( 0,04 xx 25 )
    = 1 + 1 xx 1
    = 1 + 1
    = 2
    #dtkc

  2. Answer
    0,3579 + 0,8 xx 0,04 xx 1,25 xx 25 + 0,6421
    = 0,3579 + (1,25 xx 0,8) xx (25 xx 0,04) + 0,6421
    = 0,3579 + 1 xx 1 + 0,6421
    = 0,3579 + 1 + 0,6421
    = (0,3579 + 0,6421) + 1
    = 1 + 1
    = 2

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

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