Предмет: Математика, автор: Aleksa31tv

Помогите срочно, пожалуйста!

Приложения:

Ответы

Автор ответа: Renat438

а)+(5-2-7+4)=5-2-7+4=0
б)-(12-6+17-10)=-12+6-17+10=-13
в)20+(7-11+8)=20+7-11+8=24
2.
а)-7+12-8=+(-7+12-8)
б)19+3-2=+(19+3-2)
в)-23-7+70=+(-23-7+70)
3.
а)-7+12-8=-(7-12+8)
б)19+3-2=-(-19-3+2)
в)-23-7+70=-(23+7-70)

Aleksa31tv: Спасибо!

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Обществознание, автор: princcernyj70

90 баллов
Написать небольшой рассказ (10-12 предложений) своих родных о любимой работе, о том, как передаются профессии от старших к младшим

6 лет назад

Предмет: Английский язык, автор: 7npdk6v888

Choose the correct variant.
1) I hope they _____ this road by the time we come back next summer/
a) will have repaired c) will repair
b) would repair d) would have repaired
2) The essay is good ______ for the spelling mistakes.
a)apart c) unless
b) besides d) except
3)Jim suggested that I _____ a car.
a) should buy c) would buy
b) buying d) have bought
4) Will he arrive ______ time for dinner.
a)at c) to
b)with d) in
5) When oil and water mix, oil ____ to the top.
a) rise c) rises
b) rose d) is risen
6) _________ him all novelists are insignificat.
a) besides c) beside
b) near d) after
7) THis blouse does not go _____ a pink skirt.
a)with c) up
b) to d)for
8) Are these lettuces home _____ or did you buy them in the market?
a)growing c) grow
b)grown d) grew
9) I dont suppouse I could leave now, _____?
a) do I c)could I
b) can I d) couldnt I
10) Persons swimming beyond this point do so _____ their own risk/
a) under c)on
b) in d) at
11) The cyclist was rn _____ by a motorist.
a) off c) away
b) through d) down
12) After missing a term through illness he had to work very hard to ____.
a) catch up c) catch on
b) catch after d) catch in
13) There has been a sharp rise ____ the cost of living in the past few years.
a) at c) on
b) of d )in
14) I will not come to London untill the bus strike _____ over.
a) will be c) is
b) would be d)would have been
15) I dont want anyone to overhear us, but I ___ you what happened when we ____ alone.
a) will tell, will be c)tell, will be
b) will tell, are d) would tell, are
16) If I had a typewriter I ___ it myself.
a) would type c) will have typed
b) would have typed d) will type
17) The old dog just ____ on the grass, watching the children at play.
a) is lying c) lied
b) laid d) lie
18) There has not been a great response to the sale, _____?
a) does there c) hasnt it
b) hasnt there d) has there
19) If I ____ rich, I ____ travel around the world.
a) were, would c) am, would
b) have been, would have d) were, would have
20) That was the time _____ I left him.
a) when c) ---
b) where d ) after which
Пожалуйста помогите ))

6 лет назад

Предмет: Музыка, автор: serbievaanisa

синквеин к слову ортеке помогите пожалуйста срочно нужно!!

6 лет назад

Предмет: Музыка, автор: пика18

помогите пожалуйста! Медные духовые инструменты

9 лет назад

Предмет: Математика, автор: Реми4275

номера 5,7,8,9,10 нужно срочно

9 лет назад