7. Вычисли. 91-53 100-37 48 + 15 17 +66 36 +29 85-27 74-58 23 + 28

Решим каждый пример по порядку: $$91 - 53 = 38$$ $$100 - 37 = 63$$ $$48 + 15 = 63$$ $$17 + 66 = 83$$ $$36 + 29 = 65$$ $$85 - 27 = 58$$ $$74 - 58 = 16$$ $$23 + 28 = 51$$ Ответ: $$91 - 53 = 38$$ $$100 - 37 = 63$$ $$48 + 15 = 63$$ $$17 + 66 = 83$$ $$36 + 29 = 65$$ $$85 - 27 = 58$$ $$74 - 58 = 16$$ $$23 + 28 = 51$$