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

Toán Lớp 4: (21*24-12*42)*(630+90*7)+12*(15+85)=?????

Toán Lớp 4: (21*24-12*42)*(630+90*7)+12*(15+85)=?????

Comments ( 2 )

  1. (21.24-12.42)(630+90.7)+12(15+85)
    =(21.24-21.24)(630+630)+12.100
    =0.1260+1200=1200
     

  2. [ 21 * 24 – 12 * 42 ] * [ 630 + 90 * 7 ] + 12 * [ 15 + 85 ] = 1200
    chúc học tốt
     

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

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