Scroll:Mental Sums >> Mental Sums >> mcq (96)

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)  

What is 45 tens - 147






(                    )




2)  

What is 34 hundreds - 20






(                    )




3)  

What is 43 tens - 139






(                    )




4)  

What is 24 hundreds - 11






(                    )




5)  

What is 44 tens - 161






(                    )




6)  

What is 25 hundreds - 20






(                    )




7)  

What is 47 tens - 132






(                    )




8)  

What is 22 hundreds - 14






(                    )




9)  

What is 45 tens - 175






(                    )




10)  

What is 30 hundreds - 17






(                    )




 

1)  

What is 45 tens - 147





Answer: 2


SOLUTION 1 :

Step 1:

45 x 10 = 450

 

Step 2:

450 - 147 =  303



2)  

What is 34 hundreds - 20





Answer: 1


SOLUTION 1 :

Step 1:

34 x 100 =  3400

Step2:

3400 - 20 = 3380



3)  

What is 43 tens - 139





Answer: 3


SOLUTION 1 :

Step 1:

43 x 10 = 430

 

Step 2:

430 - 139 =  291



4)  

What is 24 hundreds - 11





Answer: 1


SOLUTION 1 :

Step 1:

24 x 100 =  2400

Step2:

2400 - 11 = 2389



5)  

What is 44 tens - 161





Answer: 1


SOLUTION 1 :

Step 1:

44 x 10 = 440

 

Step 2:

440 - 161 =  279



6)  

What is 25 hundreds - 20





Answer: 4


SOLUTION 1 :

Step 1:

25 x 100 =  2500

Step2:

2500 - 20 = 2480



7)  

What is 47 tens - 132





Answer: 2


SOLUTION 1 :

Step 1:

47 x 10 = 470

 

Step 2:

470 - 132 =  338



8)  

What is 22 hundreds - 14





Answer: 2


SOLUTION 1 :

Step 1:

22 x 100 =  2200

Step2:

2200 - 14 = 2186



9)  

What is 45 tens - 175





Answer: 1


SOLUTION 1 :

Step 1:

45 x 10 = 450

 

Step 2:

450 - 175 =  275



10)  

What is 30 hundreds - 17





Answer: 4


SOLUTION 1 :

Step 1:

30 x 100 =  3000

Step2:

3000 - 17 = 2983