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)  

3 x 10 000 + 5 x 1000 + 6 x 100 + 1 x 1 = _____        

What is the missing number in the blank


Answer:_______________




2)  

6 x 10 000 + 6 x 1000 + 5 x 100 + 7 x 1 = _____        

What is the missing number in the blank


Answer:_______________




3)  

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

What is the missing number in the blank


Answer:_______________




4)  

1 x 10 000 + 4 x 1000 + 6 x 100 + 3 x 1 = _____        

What is the missing number in the blank


Answer:_______________




5)  

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

What is the missing number in the blank


Answer:_______________




6)  

3 x 10 000 + 3 x 1000 + 2 x 100 + 7 x 1 = _____        

What is the missing number in the blank


Answer:_______________




7)  

3 x 10 000 + 7 x 1000 + 5 x 100 + 5 x 1 = _____        

What is the missing number in the blank


Answer:_______________




8)  

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

What is the missing number in the blank


Answer:_______________




9)  

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

What is the missing number in the blank


Answer:_______________




10)  

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

What is the missing number in the blank


Answer:_______________




 

1)  

3 x 10 000 + 5 x 1000 + 6 x 100 + 1 x 1 = _____        

What is the missing number in the blank
Answer: 35601


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 5 x 1000 = 5000
Step 3: 6 x 100 = 600
Step 4: 1 x 1 = 1
Step 5: 30000 + 5000 + 600 + 1 = 35601

The missing number is 35601.



2)  

6 x 10 000 + 6 x 1000 + 5 x 100 + 7 x 1 = _____        

What is the missing number in the blank
Answer: 66507


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 6 x 1000 = 6000
Step 3: 5 x 100 = 500
Step 4: 7 x 1 = 7
Step 5: 60000 + 6000 + 500 + 7 = 66507

The missing number is 66507.



3)  

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

What is the missing number in the blank
Answer: 77107


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 7 x 1000 = 7000
Step 3: 1 x 100 = 100
Step 4: 7 x 1 = 7
Step 5: 70000 + 7000 + 100 + 7 = 77107

The missing number is 77107.



4)  

1 x 10 000 + 4 x 1000 + 6 x 100 + 3 x 1 = _____        

What is the missing number in the blank
Answer: 14603


SOLUTION 1 :

Step 1: 1 x 10000 = 10000
Step 2: 4 x 1000 = 4000
Step 3: 6 x 100 = 600
Step 4: 3 x 1 = 3
Step 5: 10000 + 4000 + 600 + 3 = 14603

The missing number is 14603.



5)  

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

What is the missing number in the blank
Answer: 31209


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 1 x 1000 = 1000
Step 3: 2 x 100 = 200
Step 4: 9 x 1 = 9
Step 5: 30000 + 1000 + 200 + 9 = 31209

The missing number is 31209.



6)  

3 x 10 000 + 3 x 1000 + 2 x 100 + 7 x 1 = _____        

What is the missing number in the blank
Answer: 33207


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 3 x 1000 = 3000
Step 3: 2 x 100 = 200
Step 4: 7 x 1 = 7
Step 5: 30000 + 3000 + 200 + 7 = 33207

The missing number is 33207.



7)  

3 x 10 000 + 7 x 1000 + 5 x 100 + 5 x 1 = _____        

What is the missing number in the blank
Answer: 37505


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 7 x 1000 = 7000
Step 3: 5 x 100 = 500
Step 4: 5 x 1 = 5
Step 5: 30000 + 7000 + 500 + 5 = 37505

The missing number is 37505.



8)  

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

What is the missing number in the blank
Answer: 51502


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 1 x 1000 = 1000
Step 3: 5 x 100 = 500
Step 4: 2 x 1 = 2
Step 5: 50000 + 1000 + 500 + 2 = 51502

The missing number is 51502.



9)  

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

What is the missing number in the blank
Answer: 75205


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 5 x 1000 = 5000
Step 3: 2 x 100 = 200
Step 4: 5 x 1 = 5
Step 5: 70000 + 5000 + 200 + 5 = 75205

The missing number is 75205.



10)  

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

What is the missing number in the blank
Answer: 21201


SOLUTION 1 :

Step 1: 2 x 10000 = 20000
Step 2: 1 x 1000 = 1000
Step 3: 2 x 100 = 200
Step 4: 1 x 1 = 1
Step 5: 20000 + 1000 + 200 + 1 = 21201

The missing number is 21201.