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

Toán Lớp 5: TÍNH NHANH; (827 + 716 + 9333) – (727 +616 + 833)

Toán Lớp 5: TÍNH NHANH; (827 + 716 + 9333) – (727 +616 + 833)

Comments ( 2 )

  1. Giải đáp:
    (827 + 716 + 9333) – (727 +616 + 833)
    = 827 + 716 + 9333 – 727 – 616 – 833
    = ( 827 – 727) + ( 716 – 616 ) + ( 9333 – 833)
    = 100 + 100 + 8500
    = 8700

  2. Giải đáp:
    $\begin{array}{l}(827+716+933)-(727+616+833)\\=827+716+933-727-616-833\\=(927-727)+(716-616)+(933-833)\\=100+100+100\\=300\\\\(827+716+9333)-(727+616+833)\\=827+716+9333-727-616-833\\=(927-727)+(716-616)+(9333-833)\\=100+100+8500\\=8700\end{array}$

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

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