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

Toán Lớp 6: 25.(75-49)+75.(-25-49) Giúp mình với ạ

Toán Lớp 6: 25.(75-49)+75.(-25-49)
Giúp mình với ạ

Comments ( 1 )

  1. 25.(75-49)+75.(-25-49)
    =25.75-25.49+75.(-25)-75.49
    =[25.75+75.(-25)]-(25.49+75.49)
    =0-(23+75).49
    =0-100.49
    =0-4900
    =-4900

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

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