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)  

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

What is the missing number in the blank


Answer:_______________




2)  

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

What is the missing number in the blank


Answer:_______________




3)  

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

What is the missing number in the blank


Answer:_______________




4)  

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

What is the missing number in the blank


Answer:_______________




5)  

9 x 10 000 + 8 x 1000 + 4 x 100 + 9 x 1 = _____        

What is the missing number in the blank


Answer:_______________




6)  

9 x 10 000 + 7 x 1000 + 4 x 100 + 5 x 1 = _____        

What is the missing number in the blank


Answer:_______________




7)  

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

What is the missing number in the blank


Answer:_______________




8)  

7 x 10 000 + 5 x 1000 + 2 x 100 + 8 x 1 = _____        

What is the missing number in the blank


Answer:_______________




9)  

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

What is the missing number in the blank


Answer:_______________




10)  

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

What is the missing number in the blank


Answer:_______________




 

1)  

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

What is the missing number in the blank
Answer: 16401


SOLUTION 1 :

Step 1: 1 x 10000 = 10000
Step 2: 6 x 1000 = 6000
Step 3: 4 x 100 = 400
Step 4: 1 x 1 = 1
Step 5: 10000 + 6000 + 400 + 1 = 16401

The missing number is 16401.



2)  

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

What is the missing number in the blank
Answer: 57503


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 7 x 1000 = 7000
Step 3: 5 x 100 = 500
Step 4: 3 x 1 = 3
Step 5: 50000 + 7000 + 500 + 3 = 57503

The missing number is 57503.



3)  

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

What is the missing number in the blank
Answer: 77907


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 7 x 1000 = 7000
Step 3: 9 x 100 = 900
Step 4: 7 x 1 = 7
Step 5: 70000 + 7000 + 900 + 7 = 77907

The missing number is 77907.



4)  

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

What is the missing number in the blank
Answer: 64408


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 4 x 1000 = 4000
Step 3: 4 x 100 = 400
Step 4: 8 x 1 = 8
Step 5: 60000 + 4000 + 400 + 8 = 64408

The missing number is 64408.



5)  

9 x 10 000 + 8 x 1000 + 4 x 100 + 9 x 1 = _____        

What is the missing number in the blank
Answer: 98409


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 8 x 1000 = 8000
Step 3: 4 x 100 = 400
Step 4: 9 x 1 = 9
Step 5: 90000 + 8000 + 400 + 9 = 98409

The missing number is 98409.



6)  

9 x 10 000 + 7 x 1000 + 4 x 100 + 5 x 1 = _____        

What is the missing number in the blank
Answer: 97405


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 7 x 1000 = 7000
Step 3: 4 x 100 = 400
Step 4: 5 x 1 = 5
Step 5: 90000 + 7000 + 400 + 5 = 97405

The missing number is 97405.



7)  

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

What is the missing number in the blank
Answer: 22501


SOLUTION 1 :

Step 1: 2 x 10000 = 20000
Step 2: 2 x 1000 = 2000
Step 3: 5 x 100 = 500
Step 4: 1 x 1 = 1
Step 5: 20000 + 2000 + 500 + 1 = 22501

The missing number is 22501.



8)  

7 x 10 000 + 5 x 1000 + 2 x 100 + 8 x 1 = _____        

What is the missing number in the blank
Answer: 75208


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 5 x 1000 = 5000
Step 3: 2 x 100 = 200
Step 4: 8 x 1 = 8
Step 5: 70000 + 5000 + 200 + 8 = 75208

The missing number is 75208.



9)  

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

What is the missing number in the blank
Answer: 14901


SOLUTION 1 :

Step 1: 1 x 10000 = 10000
Step 2: 4 x 1000 = 4000
Step 3: 9 x 100 = 900
Step 4: 1 x 1 = 1
Step 5: 10000 + 4000 + 900 + 1 = 14901

The missing number is 14901.



10)  

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

What is the missing number in the blank
Answer: 25605


SOLUTION 1 :

Step 1: 2 x 10000 = 20000
Step 2: 5 x 1000 = 5000
Step 3: 6 x 100 = 600
Step 4: 5 x 1 = 5
Step 5: 20000 + 5000 + 600 + 5 = 25605

The missing number is 25605.