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

Toán Lớp 5: 48 x 19 + 48 x 115 + 134 x 52 giải giúp mình với

Toán Lớp 5: 48 x 19 + 48 x 115 + 134 x 52
giải giúp mình với

Comments ( 2 )

  1. 48 x 19 + 48 x 115 + 134 x 52

    = 48 x ( 19 + 115 ) + 134 x 52 

    = 48 x 134 + 134 x 52

    = 134 x ( 48 + 52 )

    = 134 x 100

    = 13 400

     

  2. 48×19+48×115+134×52

    =48×(115+19)+134×52

    =48×134+134×52

    =134×(48+52)

    =134×100

    =13400

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