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

Toán Lớp 6: (11/9+7/9) . 7 : 2+15 HEEEEEELP

Toán Lớp 6: (11/9+7/9) . 7 : 2+15
HEEEEEELP

Comments ( 2 )

  1. Ta có:
    (11/9+7/9) . 7 : 2+15
    =(18/9)·7:2+15
    =2·7:2+15
    =2:2·7+15
    =7+15
    =22
     

  2. ( $\frac{11}{9}$ + $\frac{7}{9}$ ) . $7$ : $2$ + $15$
    = $2$ . $7$ : $2$ + $15$
    = $14$ : $2$ +$15$
    = $7$ + $15$
    = $22$
     

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

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