Scroll:Whole Numbers >> Estimate sums: word problems >> ps (3413)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

 A car company has 5,979 customers in India and 7,082 customers in other countries. In total, about how many customers does it have Choose the better estimate. 




Answer:_______________




2)  

There are 40,963 books in Channai public library. In addition, there are 89,336 books in its school libraries. About how many books do the libraries in Chennai have overall  Choose the better estimate. 




Answer:_______________




3)  

 This morning, a fortune biscuit factory produced  5242 biscuits. After lunch, it produced another 3631 fortune biscuits. In total, about how many fortune biscuits did the factory make today  Choose the better estimate.



 


Answer:_______________




4)  

Last year at Madurai airport, 3,687 passengers landed on time. Unfortunately, 5,167 passengers landed late. In all, about how many passengers landed in Madurai last year Choose the better estimate.  



 


Answer:_______________




5)  

Last year, egg producers in farms produced 93,631 eggs. This year, those same farms produced 32,447 more eggs than last year. About how many eggs did the farms produce this year Choose the better estimate. 




Answer:_______________




6)  

Haritha has a chest of coins. Inside, there are 7367 gold coins and 4591 silver coins. About how many coins are in the chest Choose the better estimate. 



 


Answer:_______________




7)  

 A car company has 4,934 customers in India and 8,052  customers in other countries. In total, about how many customers does it have Choose the better estimate. 




Answer:_______________




8)  

Last year, Karna Publishing sold 90,448 printed books. It also sold 36,976 electronic books. About how many books did the publisher sell in all Choose the better estimate. 




Answer:_______________




9)  

Panimalar has a chest of coins. Inside, there are 53 gold coins and 31 silver coins. About how many coins are in the chest Choose the better estimate. 



 


Answer:_______________




10)  

 A car company has 5,979 customers in India and 7,082 customers in other countries. In total, about how many customers does it have Choose the better estimate. 




Answer:_______________




 

1)  

 A car company has 5,979 customers in India and 7,082 customers in other countries. In total, about how many customers does it have Choose the better estimate. 



Answer: 1



2)  

There are 40,963 books in Channai public library. In addition, there are 89,336 books in its school libraries. About how many books do the libraries in Chennai have overall  Choose the better estimate. 



Answer: 2



3)  

 This morning, a fortune biscuit factory produced  5242 biscuits. After lunch, it produced another 3631 fortune biscuits. In total, about how many fortune biscuits did the factory make today  Choose the better estimate.



Answer: 1

 


SOLUTION 1 :

Round each number to the nearest  thousand

5242+3631=
5000+4000=9,000

 

 

9,000 is the better estimate. 



4)  

Last year at Madurai airport, 3,687 passengers landed on time. Unfortunately, 5,167 passengers landed late. In all, about how many passengers landed in Madurai last year Choose the better estimate.  



Answer: 2

 


SOLUTION 1 :

Round each number to the nearest  thousand

3,687+5,167=
4000+5000=9,000

 

 

9,000 is the better estimate. 



5)  

Last year, egg producers in farms produced 93,631 eggs. This year, those same farms produced 32,447 more eggs than last year. About how many eggs did the farms produce this year Choose the better estimate. 



Answer: 2


SOLUTION 1 :

Step 1:

Round each number to the nearest ten thousand.

93,631 +32,447=  
     
90,000+30,000 120,000

 

 


SOLUTION 2 :

Step 1:

Round each number to the nearest ten thousand.

 93,631+32,447=
     
90,000+30,000 120,000

 

 



6)  

Haritha has a chest of coins. Inside, there are 7367 gold coins and 4591 silver coins. About how many coins are in the chest Choose the better estimate. 



Answer: 1

 


SOLUTION 1 :

Round each number to the nearest  thousand

7367+4591=
7000+5000=12,000

 

 

12,000 is the better estimate. 



7)  

 A car company has 4,934 customers in India and 8,052  customers in other countries. In total, about how many customers does it have Choose the better estimate. 



Answer: 1



8)  

Last year, Karna Publishing sold 90,448 printed books. It also sold 36,976 electronic books. About how many books did the publisher sell in all Choose the better estimate. 



Answer: 1


SOLUTION 1 :
Add the numbers of books.
 
90,448 +36,976=

Step1

Round each number to the nearest ten thousand.

90,448+36,976=
     
90,000 37,000=130,000

130,000 is the better estimate.

 

 

 


9)  

Panimalar has a chest of coins. Inside, there are 53 gold coins and 31 silver coins. About how many coins are in the chest Choose the better estimate. 



Answer: 1

 


SOLUTION 1 :

Round each number to the nearest  ten

53+31=
50+30=80

 

 

80 is the better estimate. 



10)  

 A car company has 5,979 customers in India and 7,082 customers in other countries. In total, about how many customers does it have Choose the better estimate. 



Answer: 1