Học sinh điền số: 637 245

dịch

one+two+three+four+five+six+seven+ieght+nine+ten

1+2+3+4+5+6+7+8+9=55

one+two+three+four+five+six+seven+ieght+nine+ten=1+2+3+4+5+6+7+8+9+10=55

twenty-six

two + sĩ + three + seven + eight = twenty-six

one; two; three; four; five; sĩ; seven; eight; nine; ten

theo thử tự nhé: four ; eight ; ten

k nha!

1.seventy five - thirty seven = 75 - 37 = 38

2.thirteen + seven = 13 + 7 = 20

3.six x nine = 6 x 9 = 36

4.sixty five + fourteen = 65 + 14 = 79

5.twelve x five = 12 x 5 = 60

6.eighty - twelventy three = 80 - 23 = 57

7.fourty five + nine = 45 + 9 = 54

8.ninety six - fifty two = 96 - 52 = 44

9.sixty nine : three = 69 : 3 = 23

10.thirty fine + nine= 35 + 9 = 44

1)You are in grade six or seven?

2)Minh's school has three floors and classrooms in the third floor

Are you in grade six or seven ? Minh’s school has three floors and his classroom is on the third floor

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

đề bài là gì? @@

alice is 6 years old

beth is 7 years old

tim is 10 years old

mary is 14 years old

 Seven thousand three hundred and seventy - six + Two hundred and forty - five = Seven thousand six hundred and twenty - one .

Vietnamese :

7376

+

245

=7621                            k mình nha

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