Предмет: Математика, автор: ilacaban97

1) 4 М7 дм-2 м 8 дмі 2) 29 м 36 см + 10 м 64 см​

Ответы

Автор ответа: parus77
1

Ответ:

1)4м 9дм     2)40м

Пошаговое объяснение:

1м=100см

1дм=10см

7м7дм - 2 м 8дм= 770 см - 280 см= 490 см= 4м 90см=4м9дм

29м 36см + 10м 64 см= 39м + 100см=39м +1м= 40м

Автор ответа: iramazurk
1

Пошаговое объяснение:

1 м = 10 дм

4м 7дм - 2м 8дм = (4м - 2м) + (7дм - 8дм) =

(3м - 2м) + (17дм - 8дм) = 1м + 9дм = 1м 9дм

1 м = 100 см

29м 36см + 10м 64см =

(29м + 10м) + (36см + 64см) = 39м + 100см =

39м + 1м = 40 м

Похожие вопросы
Предмет: Английский язык, автор: grastihhh

of science. Task2 Choose the correct answers A, B or C.

6Heart rate is at the lowest level during: AThird Sleep stage B. Light Sleep stage; C. Rem Sleep;

7. Humans require at least:

A. 5 hours of sleep; B8 hours; C. There is no set amount of time

8The reason we sleep

AFor recuperation; B. saving the body energy; C. all answers are correct

Task2 Grammar Choose the correct item: 9.I did my exam a little better/ a little well than last time.

10.The letter was/is brought in time yesterday.

11.I haven't still got the email from my friend. He must/may have sent to the wrong address. I

am not sure.

12. The task was so complicated that the researcher decided to back out/ up it. 13.The warrior tried with all his efforts to keep/stay alive.

14. Psychologist/ geneticist helps person with his mental problems. 15. The teachers teach us to be honest/dishonest in writing tests.

16The students of the high schools are considered as well behaved/ well-behaved ones. 17.I wonder why Jack... (not/ attend) the essential seminar yesterday. 18.Because he... (catch a cold) by that time.

19.I wonder why... (you/ look) so upset20.Because my friends... (not, come) to my birthday

party yet.

21.A falling apple may have helped Newton to come across with/up with his theory of gravity

22. Check your homework again, I am sure you have some observation/ misinformation there. 23. Luckily/ Unfortunately the meeting starts later. We have time.

24For this task, the teacher will separate/teach the girls from the boys.
Предмет: Алгебра, автор: maria070919vv