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

Toán Lớp 6: {215-[5.(5.16-25.2)-60]}:5 mũ 3 Giúp mk vs ạ

Toán Lớp 6: {215-[5.(5.16-25.2)-60]}:5 mũ 3
Giúp mk vs ạ

Comments ( 2 )

  1. ={215-[5.(5.16-25.2)-60]} : 5³
    ={215-[5.(80-50)-60]} : 125
    ={215-[5.30-60]} : 125
    ={215-[150-60]} : 125
    ={215-90} : 125
    =125 :125
    =1
     

  2. { 215 – [ 5 × ( 5 × 16 – 25 × 2 ) – 60 ]} : 5^3
    = { 215 – [ 5 × ( 80 – 50 ) – 60 ] } : 125
    = { 215 – [ 5 × 30 – 60 ]} : 125
    = { 215 – [ 150 – 60 ]} : 125
    = { 215 – 90 } : 125
    = 125 : 125
    = 1

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