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

Toán Lớp 6: 87×13-18-13×87+18 Giúp mình với ạ,đang cần gấp

Toán Lớp 6: 87×13-18-13×87+18
Giúp mình với ạ,đang cần gấp

Comments ( 2 )

  1. 87 × 13 – 13 × 87 + 18
    = 87 × ( 13 – 13 ) + 18
    = 87 × 0 + 18
    = 0 + 18
    = 18
     

  2. @Bao
    87xx13-18-13xx87+18
    =(87xx13-13xx87)+(18-18)
    =0

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

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