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)  

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

What is the missing number in the blank


Answer:_______________




2)  

4 x 10 000 + 5 x 1000 + 8 x 100 + 3 x 1 = _____        

What is the missing number in the blank


Answer:_______________




3)  

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

What is the missing number in the blank


Answer:_______________




4)  

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

What is the missing number in the blank


Answer:_______________




5)  

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

What is the missing number in the blank


Answer:_______________




6)  

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

What is the missing number in the blank


Answer:_______________




7)  

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

What is the missing number in the blank


Answer:_______________




8)  

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

What is the missing number in the blank


Answer:_______________




9)  

5 x 10 000 + 4 x 1000 + 9 x 100 + 2 x 1 = _____        

What is the missing number in the blank


Answer:_______________




10)  

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

What is the missing number in the blank


Answer:_______________




 

1)  

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

What is the missing number in the blank
Answer: 57604


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 7 x 1000 = 7000
Step 3: 6 x 100 = 600
Step 4: 4 x 1 = 4
Step 5: 50000 + 7000 + 600 + 4 = 57604

The missing number is 57604.



2)  

4 x 10 000 + 5 x 1000 + 8 x 100 + 3 x 1 = _____        

What is the missing number in the blank
Answer: 45803


SOLUTION 1 :

Step 1: 4 x 10000 = 40000
Step 2: 5 x 1000 = 5000
Step 3: 8 x 100 = 800
Step 4: 3 x 1 = 3
Step 5: 40000 + 5000 + 800 + 3 = 45803

The missing number is 45803.



3)  

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

What is the missing number in the blank
Answer: 73403


SOLUTION 1 :

Step 1: 7 x 10000 = 70000
Step 2: 3 x 1000 = 3000
Step 3: 4 x 100 = 400
Step 4: 3 x 1 = 3
Step 5: 70000 + 3000 + 400 + 3 = 73403

The missing number is 73403.



4)  

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

What is the missing number in the blank
Answer: 26307


SOLUTION 1 :

Step 1: 2 x 10000 = 20000
Step 2: 6 x 1000 = 6000
Step 3: 3 x 100 = 300
Step 4: 7 x 1 = 7
Step 5: 20000 + 6000 + 300 + 7 = 26307

The missing number is 26307.



5)  

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

What is the missing number in the blank
Answer: 69103


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 9 x 1000 = 9000
Step 3: 1 x 100 = 100
Step 4: 3 x 1 = 3
Step 5: 60000 + 9000 + 100 + 3 = 69103

The missing number is 69103.



6)  

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

What is the missing number in the blank
Answer: 16201


SOLUTION 1 :

Step 1: 1 x 10000 = 10000
Step 2: 6 x 1000 = 6000
Step 3: 2 x 100 = 200
Step 4: 1 x 1 = 1
Step 5: 10000 + 6000 + 200 + 1 = 16201

The missing number is 16201.



7)  

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

What is the missing number in the blank
Answer: 98803


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 8 x 1000 = 8000
Step 3: 8 x 100 = 800
Step 4: 3 x 1 = 3
Step 5: 90000 + 8000 + 800 + 3 = 98803

The missing number is 98803.



8)  

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

What is the missing number in the blank
Answer: 25208


SOLUTION 1 :

Step 1: 2 x 10000 = 20000
Step 2: 5 x 1000 = 5000
Step 3: 2 x 100 = 200
Step 4: 8 x 1 = 8
Step 5: 20000 + 5000 + 200 + 8 = 25208

The missing number is 25208.



9)  

5 x 10 000 + 4 x 1000 + 9 x 100 + 2 x 1 = _____        

What is the missing number in the blank
Answer: 54902


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 4 x 1000 = 4000
Step 3: 9 x 100 = 900
Step 4: 2 x 1 = 2
Step 5: 50000 + 4000 + 900 + 2 = 54902

The missing number is 54902.



10)  

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

What is the missing number in the blank
Answer: 86703


SOLUTION 1 :

Step 1: 8 x 10000 = 80000
Step 2: 6 x 1000 = 6000
Step 3: 7 x 100 = 700
Step 4: 3 x 1 = 3
Step 5: 80000 + 6000 + 700 + 3 = 86703

The missing number is 86703.