6,5 + 4,8 = 11,3( eleven point three)

65 + 48 = 112

k minh di nha

Số số hạng trong dãy trên là :      ( 500 - 2 ) : 2 + 1 = 250 ( số )

Tổng các số trong dãy số trên :      ( 500 + 2 ) * 250 : 2 = 62750

 ĐÚNG cho mình nha !

two+four+...+five-hundred

=(two+five-hundred)+(four+four-hunged ninety eight)+...+(two-hundred fifty+two-hundred-fity two)

=five-hundred two+five-hundred two+...+five-hundred-two (It is have (502-2)/2=250 five-hundred-twos)

=five-hundre two * two hudred fifty

=one-hundred twenty-five thousand five-hundred

Write the time

1. A quarter to eight :7h45'

2.From half past six to eight o’clock:from 6h30 to 8h

3.From four o’clock to quarter past five :from 4 to 5h15

4.At twelve o’clock :12h

5.At ten past eight:8h10

6.At ten to eight:7h50

7.From quarter past six to s:even o’clock:from 6h15 to 7

8.At five past two:2h5

9.From seven to nine o’clock:from 7 to 9

10.From ten past four to five o’clock:from 4h10 to 5h

11.At five o’clock:5h

12.At half past seven:7h30

13.From five o’clock to half past six :from 5h to 6h30

sử dụng phép tính nhanh:

=(one + nine)+(two + eight)+(three + seven)+(four + six)+ten+five

=ten+ten+ten+ten+ten+five

=fifty-five

có số số hạng là:

(10 -1) :1 +1= 10

tổng dãy số là:

(10+1) x 10 :2=45

đáp số :45

(a)oh nine eight nine two oh three four six eight

(b), (c),(e), (f),(g) và (h) mik thấy sai sai

(d)oh nine eight seven three four seven five double two

01694051970:oh one six nine four oh five one nine seven oh

Có fải bài này trong vở bt tiếng anh 7 ko?

ukm

0650 3877144: oh six five oh three eight double seven one double four

04 38237765: oh four three eight two three double seven six five

0918845366: oh night one double eight four five three double six

012377066: oh one two three double seven oh double six

0670 3855489: oh six seven oh three eight double five four eight night

Hãy đọc các số điện thoại sau:

Ví dụ :08 3844106: oh eight three eight double four oh six

0650 3877144: oh six five oh three eight double seven one double four

04 38237765: oh four three eight two three double seven six five

0918845366: oh nine one double eight four five three double six

012377066: oh one two three double seven oh double six

0670 3855489: oh six seven oh three eight double five four eight nine

1. third

2. ninth

3. twentieth

4. sixth

5. twelfth

6. first

7. thirty-first

8. seventeenth

9. second

10. twenty-third

11. fifteenth

12. eighth

13. fifth

14. eleventh

15. twenty-fourth

16. tenth

17. seventh

18. twenty-eighth

19. fifteenth

20. thirteenth

1. third

2. ninth

3. twentieth

4. sixth

5. twelfth

6. first

7. thirty-first

8. seventeenth

9. second

10. twenty-third

11. fifteenth

12. eighth

13. fifth

14. eleventh

15. twenty-fourth

16. tenth

17. seventh

18. twenty-eighth

19. fifteenth

20. thirteenth

nếu đúng thì k mình nha