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

Toán Lớp 4: 287 x ( 40 – 8 ) = ( 42 x 7) x ( 2 x 5 )

Toán Lớp 4: 287 x ( 40 – 8 )
= ( 42 x 7) x ( 2 x 5 )

Comments ( 2 )

  1. 287 x ( 40 – 8 )
    = 9184
    ( 42 x 7) x ( 2 x 5 )
    =  2940

  2. 287 × ( 40 – 8 )
    = 287 × 32
    = 9184
    ( 42× 7) × ( 2 × 5 )
    = 294 × 10
    = 2940

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