Yechish rejasi:
1.Ikkinchi qopda necha kg kartoshka bor?
2.Ikkala qopda jami necha kg kartoshka bor?
Yechilishi:
1-usul:
1) 46-8=38 (ikkinchi qopdagi jami kartoshka massasi)
2) 46+38=84 (ikkala qopdagi jami kartoshka massasi)
2-usul: Sonli ifoda orqali topish.
46+(46-8)=46+38=84 (ikkala qopdagi jami kartoshka massasi)
Do'stlaringiz bilan baham: