3. Выполни задания по вариантам ВАРИАНТ 1
1
Выполните умножение
в) 0,8 - (-2,6):
б) 11:( .
г) - 4-.
Выполните деление
а) 63 :(-21);
B) 0213
б) -24 :(-6).
3.
І
Решите уравнение
а) 1,8у в -3 (9.
б) x: (-2,3)=
1,6​

из10кг                                    кол-во  кг                                                           всего муки

9кг                                              40кг                                                                      ?кг

9кг                                               60кг                                                                      ?кг

9кг                                                100кг                                                                      ?кг

40/10*9=36-из 40 кг

60/10*9=54из  60кг

100/10*9=90 из 100кг

из10кг                                    кол-во  кг                                                           всего муки

9кг                                              40кг                                                                      ?кг

9кг                                               60кг                                                                      ?кг

9кг                                                100кг                                                                      ?кг

40/10*9=36-из 40 кг

60/10*9=54из  60кг

100/10*9=90 из 100кг