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

Toán Lớp 5: 75 nhân 23 cộng 25 nhân 23 cộng 10

Toán Lớp 5: 75 nhân 23 cộng 25 nhân 23 cộng 10

Comments ( 2 )

  1. \text{75 x 23 + 25 x 23 + 10}
    \text{= 23 x (75 + 25) + 10}
    \text{= 23 x 100 + 10}
    \text{= 2 300 + 10}
    \text{= 2 310}

  2. 75 x 23+25 x 23+10
    =23 x (75+25)+10
    =23 x 100+10
    =2300+10
    =2310
     

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