Plis pomóżcie na jutro 1.oblicz sposobem pisemnym: a) 2764+359 b) 1152-648 c) 506x380 d) 1806:23 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................2. Oblicz w pamięci : 42:7+7x(62-9x6)=......... Dam naj , dziękujkę i zaproszzę do znaj