Write the words in number form which consist of: 7 hundred thousands, 6 thousands, 3 hundreds, 4 tens and 2 units.
Answer: 

Câu 2:
Fill in the sequence with the missing number in order to have 3 consecutive natural numbers.
897;  ; 899

Câu 3:
Fill in the sequence with the missing number in order to have 3 consecutive natural numbers.
; 87; 88

Câu 4:
How many single digit numbers are there?
Answer:  numbers.

Câu 5:
6 is just after of 5 and 5 is just before of 6. What is the product of just after and just before of 10?
Answer: 

Câu 6:
Jean has 3014 beads. She has 497 beads less than Gillian. How many beads do they have altogether?
Answer: They have  beads altogether.

Câu 7:
There are 56 apples in a basket.  of them are green and the rest are red. How many red apples are there?
Answer: There are  red apples.

Câu 8:
The perimeter of a square garden is 36m. What is its area?
Answer: Its area is  .

Câu 9:
248 boys and 418 girls were divided into groups of 9. How many groups were there altogether?
Answer:  groups.

Câu 10:
Mr Junior bought 1 magazine, 1 book and 1 pen. The pen costs 5 dollar, the book costs 31 dollar more than the pen. The magazine costs twice as much as the book. How much did he spend on the three things?
Answer: He spent  dollar.

Express seventy thousand, four hundred and nine in numerals.
Answer: 

Question 2:
Subtract 346 from 752.
Answer: 

Question 3:
Divide 2016×2016 by 2016. The quotient is 

Question 4:
Study the pattern.
88:8=11  
880:8=110 
8800:8= ? 
The missing number is 

Question 5:
Jack, Mary and Jacob buy ice creams. Jack buys twice as many as Mary. Jacob buys three times as many as Jack. If Jacob buys 12 ice creams then Mary buys  ice creams.
 

Question 6:
A set of five different numbers has an average of 12. If the average of four smallest numbers is 10 then the greatest number is 

Question 7:
100 hundreds + 1000 tens =  ones

Question 8:
My giant flower doubles its size every day. On Friday, it is  times as big as its was on the preceding Sunday.
 

Question 9:
Peter and John played in fifteen rounds game. In each round, the winner scored 5 points and the loser scored 2 points. At the end of the game, John’s total score was 57 points. How many rounds did Peter win?
Answer:  rounds.

Question 10:
If we write all of the whole numbers from 10 through 99 and cross out any number in which the first or second digit is divisible by 2 (for example, 41 is crossed out as 4 is divisible by 2 and 36 is crossed out as 6 is divisible by 2), how many numbers are crossed out?
Answer:  numbers.