40*5=200 км проїхав до зустрічі один автомобіль
450-200=250км проїхав до зустрічі другий автомобіль
250/5=50 км/год швидкість з якою їхав другий автомобіль
Да, всё верно. ведь если сложить 14 и 12 то получится 16. а у 13 есть дырочки. нет дырочек только у 3-ёх камешков.
3-2=1лллллллллллллллллллллллллллллллл
(840+840:2) : 3:<span>14 = 30 ящиков</span><span>
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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?
