Предмет: Математика, автор: dashafom26

Помогите решить 15 баллов!!! СРОЧНО!!!

Приложения:

Ответы

Автор ответа: janefedorchenko
1

Ответ:

11. 2000 и 1920

12. 960 и 700

468

4485

Пошаговое объяснение:

11. 62*14+11*62+18*25=62*(14+11)+18*25=62*25+18*25=25*(62+18)=25*80=2000

17*19+17*45+13*64=17*(19+45)+13*64=17*64+13*64=64*(17+13)=1920

12.48*11-11*16+32*19=11*(48-16)+32*19=11*32+32*19=32*(11+19)=960

12*32-12*18+38*14=12*(32-18)+38*14=12*14+38*14=14*(12+38)=700

(14+23+76)*5=14*5+23*5+76*5=70+115+380=565

(56-43)*4=56*4-43*4=224-172=52

78*6=468

299*15=4485


dashafom26: Спасибо )))
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