Предмет: Математика, автор: Марина2002г

кто придумал цифры 0 1 2 3

Ответы

Автор ответа: dnepr123

0

Эти цифры принято называть арабскими, так как европейцы переняли их у арабов. Но арабы не придумали эти цифры, а, в свою очередь, переняли их у древних индийцев. В шестом веке в Индии придумали цифры от 1 до 9, а в девятом веке индийцы добавили к девяти цифрам еще и 0 (нуль).

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Литература, автор: parfenovp7

Пожалуйста сочинение на тему "Кому из героев "Капитанской дочки" свойственно милосердие?"

6 лет назад

Предмет: Английский язык, автор: malonovakit

Помогите!!!!!

1). It was the first time I ... a live match.
Выберите один ответ:
a. was ever seen
b. had ever been seeing
c. had ever seen
d. was ever seeing

2). Since I...university, I haven’t had much spare time.
Выберите один ответ:
a. start
b. started
c. have started
d. was starting

3). You _____ spanked her. She didn’t deserve it.
Выберите один ответ:
a. couldn’t have
b. mustn’t have
c. shouldn’t have
d. needn’t have

4). You _____ get the 8.45 train. It doesn’t stop at Yorkshire.
Выберите один ответ:
a. should
b. had better
c. mustn’t
d. don’t have to

5). A: Did you enjoy the concert?
B: It was OK, but I ___ to the theatre.
Выберите один ответ:
a. must have gone
b. needn’t have gone
c. had better go
d. would rather have gone

6). His illness got worse and worse. In the end he ____ go into hospital for an operation.
Выберите один ответ:
a. had to
b. must
c. ought to have
d. will have to

7). ‘Why were you so tired yesterday?’ ‘Because I... all morning.’
Выберите один ответ:
a. jog
b. had been jogging
c. was jogged
d. had been jogged

8). Don’t you think Ian ... just like his father?
Выберите один ответ:
a. looks
b. is looking
c. has looked
d. has been looking

9). Two soldiers ____________ when the Dean came in.
Выберите один ответ:
a. were questioning
b. had been being questioned
c. were being questioned
d. were questioned

10). Your order is guaranteed ___________ within 3 days.
Выберите один ответ:
a. to be delivered
b. to deliver
c. to will have been delivered
d. will be delivered

11). If you don’t feel better you _____ go to bed.
Выберите один ответ:
a. needn’t
b. don’t have to
c. ought
d. should

12). ... arrived when trouble started.
Выберите один ответ:
a. Hardly have I
b. I hardly had
c. Hardly had I
d. Had I hardly

13). I ... the whole of War and Peace by the time I was seven years old.
Выберите один ответ:
a. had been reading
b. had been read
c. had read
d. was reading

14). When did you discover that the child ____________?
Выберите один ответ:
a. was kidnapped
b. had kidnapped
c. had been kidnapped
d. has been kidnapped

15). We _____ leave now or we’ll be late.
Выберите один ответ:
a. will
b. can
c. must
d. has to

16). When are you going to finish this test? I ... it already.
Выберите один ответ:
a. finish
b. finished
c. am finishing
d. have finished

17). Our tent __________ in the night by the wind.
Выберите один ответ:
a. was blown
b. was blew
c. had been blown
d. had been blew

18). Unfortunately, the flight _______________.
Выберите один ответ:
a. had just been delayed
b. is just been delayed
c. was just delayed
d. has just been delayed

19). I don’t know when the goods I’ve ordered _______________ to my place.
Выберите один ответ:
a. will be delivered
b. are delivered
c. will be being delivered
d. will have been delivered

20). Some antique vases ___________ in the old mansion.
Выберите один ответ:
a. were found
b. were finded
c. were find
d. were founded

6 лет назад

Предмет: Литература, автор: nivannikov9

Выпишите из стихотворения "Листок" глаголы, которые относятся к образу Чинары

6 лет назад

Предмет: Биология, автор: Аноним

Группа бактерий Среда обитания Значение -----------------------------------------------------------------

Гниения

Почвенные

Болезнетворные

Клубеньковые

Молочнокислые

9 лет назад

Предмет: Математика, автор: kroshka82

используя знаки действий и если надо скобки запиши число 10 четырьмя тройками

9 лет назад