Номер 238.
Расставьте в выражении 2 ⋅ 2 - 2 : 2 скобки всеми возможными способами и найдите значение каждого выражения.
Ответ:
2 ⋅ 2 − 2 : 2 = 4 – 1 = 3
2 ⋅ (2 – 2) : 2 = 2 ⋅ 0 : 2 = 0
2 ⋅ (2 − 2 : 2) = 2 ⋅ (2 – 1) = 2 ⋅ 1 = 2
2 ⋅ 2 – (2 : 2) = 2 ⋅ 2 – 1 = 4 – 1 = 3
2 ⋅ (2 – 2) : 2 = 2 ⋅ 0 : 2 = 0
(2 ⋅ 2) − 2 : 2 = 4 – 1 = 3
(2 ⋅ 2) – (2 : 2) = 4 – 1 = 3
