Предмет: Математика, автор: lala2012lala20

Как решить пример 2573-896+656:4-5×265

Ответы

Автор ответа: AlenaLisa74

Ответ:

516

Пошаговое объяснение:

656/4=164

5*265=1325

2573-896=1677

1677+164=1841

1841-1225=516

Автор ответа: bleshie

516

Пошаговое объяснение:

2573-896+656:4-5×265=

=2573- 896 + 164 - 1325=

=516

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Since that day we met almost every evening. Mr. Cavor lectured me on physics and I learnt a lot of interesting and unusual things.
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substance – вещество
opaque – непроницаемый
rays – лучи

I. Complete the statements according to the text.
1. The author went to Mr. Cavor's laboratory because...
1) he wanted to know everything about Mr. Cavor's invention.
2) Mr. Cavor invited him.
3) he wanted to speak to Mr. Cavor about the play he was writing.
4) he wanted to write an article about Mr. Cavor.
2. Mr. Cavor's object of research work was...
1) a kind of radiant energy.
2) light, heat and Rontgen rays.
3) a new element.
4) a new substance.
3. Since the day of the author's visit to Mr. Cavor's laboratory...
1) the author got very interested in Mr. Cavor's invention and wanted to describe it in his play.
2) the author could not work at his play any longer.
3) Mr. Cavor asked him to become his fourth assistant.
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II. Choose the correct articles.
... possibilities of ... Substance opaque to heat and gravitation had no limits.
1) a, the 2) -, the 3) the, a 4) the, the

III. Change the sentence from Passive into Active:
All the intellectual work was done by Mr. Cavor.
1) Mr. Cavor had done all the intellectual work.
2) Mr. Cavor has done all the intellectual work.
3) Mr. Cavor did all the intellectual work.
4) Mr. Cavor was doing all the intellectual work.

IV. ‘To apply’ means:
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On the fourteenth evening when he appeared I went to the place where he always stopped. “One moment, sir,” said I, “is it your time for exercises?” “Yes, it is. I come here to look at the t”. We talked a little, then wished each other good evening and both went our way.
(After H. G. Wells)
_____________
marsh – болото

I. Complete the statements according to the text.
1. The author wanted to write a play because lie...
I ) needed money.
2) had nothing to do.
3) wanted to open some business.
4) wanted to become famous.
2. The author first saw Mr. Cavor...
I) when it was raining hard.
2) from the window of his study.
3) on his second day in Lympne.
4) when he was walking over the marsh.
3. The author first talked to Mr. Cavor...
1) two weeks later.
2) three days later.
3) after the sunrise.
4) the same day when lie saw him.

II. Choose the correct article.
After our first talk I knew little about Mr. Cavor. But I understood that he was ... serious man.
1) the 2) - 3) a 4) an

III. Choose the correct variant.
The author lost ... money in some business operations.
1) little 2) a little 3) many 4) much

IV. ‘For a rainy day’ means:
1) на случай дождя
2) на всякий случай
3) на черный день
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This is a story that Chaplin liked to tell about himself. It happened after the great actor had become world famous.
A theatre announced that a competition would be held to see who could act like Charlie Chaplin. Those taking part had to dress like Chaplin, walk like Chaplin and act one of the roles in a Chaplin film.
When Charlie Chaplin heard about the competition he decided, as a joke, to take part in the competition himself. Naturally, he kept his plan a secret from everybody.
When the results of the competition were announced Chaplin said: “1 didn't know whether to feel angry or only surprised. I didn't win the first prize. But after thinking about it, I decided that it would be best to laugh.”

I. Complete the statements according to the text.
1. This is a story which...
1) Chaplin was fond of telling.
2) is written by Chaplin's friend.
3) was announced at the competition.
4) happened before Chaplin had become world famous.
2. People who took part in the competition had to...
1) sing songs.
2) keep it a secret.
3) imitate Chaplin's manners.
4) dance.
3. When the results of the competition were announced Chaplin learnt that...
1) his new film was a success.
2) lie had won the first prize.
3) lie had not won the first prize.
4) he had won the second prize.
4. When Chaplin learnt the news lie decided...
1) to be angry.
2) to keep it a secret.
3) to tell everybody about it.
4) to laugh.

II. Find the wrong sentence.
1) Chaplin didn't take pail in the competition.
2) Chaplin didn't allow to hold this competition.
3) Chaplin didn't know about the competition.
4) Chaplin didn't tell anybody about his plans.

III. Choose the synonym to the underlined word.
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1) play
2) picture
3) cinema
4) performance