НАЙДИТЕ ЗНАЧЕНИЕ ВЫРОЖЕНИЯ УДОБНЫМ ДЛЯ ВАС СПОСОБОМ! (еслине надо менять и удобна то не надо).   387+(345-187)=545              810-(90+20)=600                  (392+269)+108=769   (497+433)-197=733              293*2+107*2=787                275*2-175*2=900
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