35*65-29*17-29*18+35*64

Question

35*65-29*17-29*18+35*64

Answer 1

Вот. старалась... извините за подчерк

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Answer 2

35*65-29*17-29*18+35*64=35*(65+64)-29*(17+18)=35*129-29*35=4515-1015=3500