Предмет: Математика, автор: oven13

Назовите сумму всех двухзначных чисел. (Логика)

Ответы

Автор ответа: alena170520204
0
10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+34+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+53+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87+89+88+90+91+92+93+94+95+96+97+98+99=4905

Автор ответа: oven13
0
Тут должна быть логика
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Task 1. Choose A , B or C to complete the sentences. ( 40 points )
e.g. Jack —---— football on Saturday afternoon
. watches B. looks C. sees
1. Ann is here. She’s just —--------— .
A. gone B. been C. come
2. There wasn’t —------— on the bus
A. anyone B. no person C. nobody
3. Jack is —------— boy in the class
A. the smaller B. the smallest C. smaller
4. What is Peter like? He —---------
A. like tennis B. is very well C. is very nice
5. John was —-----— the bus at the bus station.
A. expecting B. waiting for C. attending
6. John will mend the window when he —------.
A. does come B. comes C. is coming.
7. Are you going to school? No, I —--------.
A. am not B. don’t C. doesn’t
8. Kate bought —---------
A. to Peter a pen B. for Peter a pen C. a pen for Peter
9. Did Joe —-— with the band yesterday?
A. sung B. sang C. sing
10. I’ll leave him a note —--— he will know where we are.
A. that B. so that C. for
11. How long —------— studying English?
A. have you been B. did you C. were you
12. He wanted to know how long —---— there.
A. had I been B. I had been C. I were
13. English —---— in many countries.
A. is spoken B. has been spoke C. is being spoken
14. The Eiffel Tower —-----— in 1889.
A. had completed B. has been completed C. was completed
15. What —-----— if you didn’t have enough food?
A. you would do B. would you do C. do you do
16. If I —--— cold, I would make a fire.
A. will be B. am C. were
17. You like jazz, —---— ?
A. don’t you B. you don’t C. do you
18. How —--— you survive if you got lost in the forest?
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