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

Toán Lớp 5: Tính nhanh 23 x 11 + 23 x 08 + 23 x 80 + 23

Toán Lớp 5: Tính nhanh 23 x 11 + 23 x 08 + 23 x 80 + 23

Comments ( 2 )

  1. 23 xx 11 + 23 xx 8 + 23 xx 80 + 23
    = 23 xx 11 + 23 xx 8 + 23 xx 80 + 23 xx 1
    = 23 xx ( 11 + 8+80+1)
    = 23 xx 100
    = 2300
     

  2. 23 × 11 + 23 × 8 + 23 × 80 + 23
    = 23 × (11+8+80+1)
    = 23 × 100
    =2300 

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

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