Scroll:Mental Sums >> Mental Sums >> saq (1210)

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)  

9 x 10 000 + 9 x 1000 + 5 x 100 + 2 x 1 = _____        

What is the missing number in the blank


Answer:_______________




2)  

3 x 10 000 + 3 x 1000 + 3 x 100 + 5 x 1 = _____        

What is the missing number in the blank


Answer:_______________




3)  

4 x 10 000 + 7 x 1000 + 2 x 100 + 1 x 1 = _____        

What is the missing number in the blank


Answer:_______________




4)  

9 x 10 000 + 2 x 1000 + 2 x 100 + 7 x 1 = _____        

What is the missing number in the blank


Answer:_______________




5)  

8 x 10 000 + 4 x 1000 + 3 x 100 + 8 x 1 = _____        

What is the missing number in the blank


Answer:_______________




6)  

3 x 10 000 + 4 x 1000 + 4 x 100 + 4 x 1 = _____        

What is the missing number in the blank


Answer:_______________




7)  

3 x 10 000 + 4 x 1000 + 9 x 100 + 5 x 1 = _____        

What is the missing number in the blank


Answer:_______________




8)  

7 x 10 000 + 4 x 1000 + 7 x 100 + 9 x 1 = _____        

What is the missing number in the blank


Answer:_______________




9)  

1 x 10 000 + 3 x 1000 + 6 x 100 + 7 x 1 = _____        

What is the missing number in the blank


Answer:_______________




10)  

7 x 10 000 + 6 x 1000 + 6 x 100 + 4 x 1 = _____        

What is the missing number in the blank


Answer:_______________




 

1)  

9 x 10 000 + 9 x 1000 + 5 x 100 + 2 x 1 = _____        

What is the missing number in the blank
Answer: 99502


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 9 x 1000 = 9000
Step 3: 5 x 100 = 500
Step 4: 2 x 1 = 2
Step 5: 90000 + 9000 + 500 + 2 = 99502

The missing number is 99502.



2)  

3 x 10 000 + 3 x 1000 + 3 x 100 + 5 x 1 = _____        

What is the missing number in the blank
Answer: 33305


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 3 x 1000 = 3000
Step 3: 3 x 100 = 300
Step 4: 5 x 1 = 5
Step 5: 30000 + 3000 + 300 + 5 = 33305

The missing number is 33305.



3)  

4 x 10 000 + 7 x 1000 + 2 x 100 + 1 x 1 = _____        

What is the missing number in the blank
Answer: 47201


SOLUTION 1 :

Step 1: 4 x 10000 = 40000
Step 2: 7 x 1000 = 7000
Step 3: 2 x 100 = 200
Step 4: 1 x 1 = 1
Step 5: 40000 + 7000 + 200 + 1 = 47201

The missing number is 47201.



4)  

9 x 10 000 + 2 x 1000 + 2 x 100 + 7 x 1 = _____        

What is the missing number in the blank
Answer: 92207


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 2 x 1000 = 2000
Step 3: 2 x 100 = 200
Step 4: 7 x 1 = 7
Step 5: 90000 + 2000 + 200 + 7 = 92207

The missing number is 92207.



5)  

8 x 10 000 + 4 x 1000 + 3 x 100 + 8 x 1 = _____        

What is the missing number in the blank
Answer: 84308


SOLUTION 1 :

Step 1: 8 x 10000 = 80000
Step 2: 4 x 1000 = 4000
Step 3: 3 x 100 = 300
Step 4: 8 x 1 = 8
Step 5: 80000 + 4000 + 300 + 8 = 84308

The missing number is 84308.



6)  

3 x 10 000 + 4 x 1000 + 4 x 100 + 4 x 1 = _____        

What is the missing number in the blank
Answer: 34404


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 4 x 1000 = 4000
Step 3: 4 x 100 = 400
Step 4: 4 x 1 = 4
Step 5: 30000 + 4000 + 400 + 4 = 34404

The missing number is 34404.



7)  

3 x 10 000 + 4 x 1000 + 9 x 100 + 5 x 1 = _____        

What is the missing number in the blank
Answer: 34905


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 4 x 1000 = 4000
Step 3: 9 x 100 = 900
Step 4: 5 x 1 = 5
Step 5: 30000 + 4000 + 900 + 5 = 34905

The missing number is 34905.



8)  

7 x 10 000 + 4 x 1000 + 7 x 100 + 9 x 1 = _____        

What is the missing number in the blank
Answer: 74709


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 4 x 1000 = 4000
Step 3: 7 x 100 = 700
Step 4: 9 x 1 = 9
Step 5: 70000 + 4000 + 700 + 9 = 74709

The missing number is 74709.



9)  

1 x 10 000 + 3 x 1000 + 6 x 100 + 7 x 1 = _____        

What is the missing number in the blank
Answer: 13607


SOLUTION 1 :

Step 1: 1 x 10000 = 10000
Step 2: 3 x 1000 = 3000
Step 3: 6 x 100 = 600
Step 4: 7 x 1 = 7
Step 5: 10000 + 3000 + 600 + 7 = 13607

The missing number is 13607.



10)  

7 x 10 000 + 6 x 1000 + 6 x 100 + 4 x 1 = _____        

What is the missing number in the blank
Answer: 76604


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 6 x 1000 = 6000
Step 3: 6 x 100 = 600
Step 4: 4 x 1 = 4
Step 5: 70000 + 6000 + 600 + 4 = 76604

The missing number is 76604.