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

Toán Lớp 5: Tính nhanh:270×12+608×12+112×12=…

Toán Lớp 5: Tính nhanh:270×12+608×12+112×12=…

Comments ( 2 )

  1. 270xx12+608xx12+112xx12
    =12xx(270+608+112)
    =12xx990
    =12xx100xx9,9
    =1200xx9,9
    =11880
     

  2. 270xx12+608xx12+112xx12
    =12xx(270+608+112)
    =12xx990
    =12xx100xx9,9
    =1200xx9,9
    =1180

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

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