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

Toán Lớp 4: d, 423 x 251 – 324 x 251 + 251

Toán Lớp 4: d, 423 x 251 – 324 x 251 + 251

Comments ( 2 )

  1. d,
    423 xx 251 – 324 xx 251 + 251
    =251xx(423-324+1)
    =251xx(99+1)
    =251xx100
    =25100
     

  2. Answer
    \(\begin{array}{l}
    423 \times 251 – 324 \times 251 + 251\\
    = 251 \times (423 – 324 + 1)\\
    = 251 \times (99 + 1)\\
    = 251 \times 100\\
    = 25100
    \end{array}\)

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

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