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

Toán Lớp 6: 12,48 : 0,5 x 6,25 x 4 x 2 ___________________________ 2 x 3,12 x 125 : =0,25 x 10

Toán Lớp 6: 12,48 : 0,5 x 6,25 x 4 x 2
___________________________
2 x 3,12 x 125 : =0,25 x 10

Comments ( 2 )

  1. (12,48 : 0,5 × 6,25 × 4 × 2)/(2 × 3,12 × 125 : 0,25 × 10)
    = (12,48 × 2 × 6,25 × 4 × 2)/(2 × 3,12 × 125 × 4 × 10)
    = (12,48 × 6,25 xx 2)/(3,12 xx 125 xx 10)
    = (3,12 xx 4 xx 6,25 xx 2)/(3,12 xx 125 xx 10)
    = (4 xx 5 × 1,25 xx 2)/(1,25 × 100 × 10)
    = (4 × 5 × 2)/1000
    = 40/1000
    = 1/25

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

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