Tom added all odd numbers from 1 to 1999

Anna added all even numbers from 2 to 2000

Then Mary subtracted Tom is result from Anna is result. Mary is result is.........

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Peter added all odd numbers from 1 to 999. Jane added all even numbers from 2 to 1000. Then Mary subtracted Peter’s result from Jane’s result. Mary’s result is

Question 8:
Share 200 dollars for you and 4 your friends. Each person gets  dollars.

Question 9:
Peter added all odd numbers from 1 to 999. Jane added all even numbers from 2 to 1000. Then Mary subtracted Peter’s result from Jane’s result. Mary’s result is 

Question 10:
Nick has 34 boxes of 11 marbles each. He gives his friend 15 marbles. How many marbles does he have left?
Answer:  marbles.

I add up all even number between 1 and 101. Then from my total I subtract all odd numbers between 0 and 100. What is the result?

N is a natural number greater than 1. When 1 is added to N the result is a multiple of 2. When 2 is added to N, the result is a multiple of 3. When 3 is added to N, the result is a multiple of 4. When 4 is added to N the result is a multiple of 5.  When 5 is added to N the result is a multiple of 6. When 6 is added to N the result is a multiple of 7.

Question 9:
Three years ago, Nora was half as old as Mary is now. If Mary is four years older than Nora then Mary is ............. years old now.

Question 10:
It took boys hours to clean a house. How many boys are needed to clean the house in hours?
The result is: ...... boys.

The average of all the numbers from 1 to 99 is ......... ?

Susan writes all the counting numbers, from 11 to 100100, on a piece of paper. She then asks her sister to find the number of all the digits found on the paper. The answer is .....

Sắp xếp các câu sau để có một bài hội thoại hoàn chỉnh:

1. Hello, Tom. Niec to mee you again.

2. Nice to see you. How are you, Mary?

3. Hi, Mary.

4. I am very fine, thank you. And how about you, Tom?

5. Oh, nice to meet you, David.

6. I am very fine, too.

7. Oh, that's great.

8. Tom, this is David

9. Hi, Tom. Niec to meet you, too. I am from London.