Что? Где задание? Или баллов много?
-105, -61, -59, 0, 23, 63, 173!
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1. Математическое выражение, стоящее под
знаком обыкновенной дроби.
2. Как на Руси называли дроби?
3. Кто впервые в Европе ввёл десятичные
дроби?
4. Математическое выражение, стоящее над
знаком обыкновенной дроби.
5. Формат дроби.
6. В какой стране впервые
встречаются десятичные дроби?
7. Как называется эта дробь 9/8
?
8. Формат дроби.
9. Греческий математик, который
ввёл слова «числитель» и «знаменатель» в оборот?
10. Число, состоящее из одной или
несколько частей (долей) единицы?
60+4+80 и 500+2000
а,б ответы: 146 и 2500
Часы показывают 04 ч 10 мин
04 ч 10 мин - 1 ч = 3 ч 10 мин = (3 * 60 + 10) мин = 190 минут прошло с часа (1:00)
04 ч 10 мин - 01 ч 20 мин = 2 ч 50 мин = (2 * 60 + 50) мин = 170 минут= 170*60 сек =10 200 секунд прошло с 1 ч 20 мин