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

What is the missing number in the blank


Answer:_______________




2)  

5 x 10 000 + 8 x 1000 + 3 x 100 + 2 x 1 = _____        

What is the missing number in the blank


Answer:_______________




3)  

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

What is the missing number in the blank


Answer:_______________




4)  

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

What is the missing number in the blank


Answer:_______________




5)  

2 x 10 000 + 8 x 1000 + 4 x 100 + 2 x 1 = _____        

What is the missing number in the blank


Answer:_______________




6)  

8 x 10 000 + 6 x 1000 + 9 x 100 + 5 x 1 = _____        

What is the missing number in the blank


Answer:_______________




7)  

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

What is the missing number in the blank


Answer:_______________




8)  

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

What is the missing number in the blank


Answer:_______________




9)  

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

What is the missing number in the blank


Answer:_______________




10)  

8 x 10 000 + 9 x 1000 + 7 x 100 + 3 x 1 = _____        

What is the missing number in the blank


Answer:_______________




 

1)  

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

What is the missing number in the blank
Answer: 56406


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 6 x 1000 = 6000
Step 3: 4 x 100 = 400
Step 4: 6 x 1 = 6
Step 5: 50000 + 6000 + 400 + 6 = 56406

The missing number is 56406.



2)  

5 x 10 000 + 8 x 1000 + 3 x 100 + 2 x 1 = _____        

What is the missing number in the blank
Answer: 58302


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 8 x 1000 = 8000
Step 3: 3 x 100 = 300
Step 4: 2 x 1 = 2
Step 5: 50000 + 8000 + 300 + 2 = 58302

The missing number is 58302.



3)  

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

What is the missing number in the blank
Answer: 62205


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 2 x 1000 = 2000
Step 3: 2 x 100 = 200
Step 4: 5 x 1 = 5
Step 5: 60000 + 2000 + 200 + 5 = 62205

The missing number is 62205.



4)  

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

What is the missing number in the blank
Answer: 11805


SOLUTION 1 :

Step 1: 1 x 10000 = 10000
Step 2: 1 x 1000 = 1000
Step 3: 8 x 100 = 800
Step 4: 5 x 1 = 5
Step 5: 10000 + 1000 + 800 + 5 = 11805

The missing number is 11805.



5)  

2 x 10 000 + 8 x 1000 + 4 x 100 + 2 x 1 = _____        

What is the missing number in the blank
Answer: 28402


SOLUTION 1 :

Step 1: 2 x 10000 = 20000
Step 2: 8 x 1000 = 8000
Step 3: 4 x 100 = 400
Step 4: 2 x 1 = 2
Step 5: 20000 + 8000 + 400 + 2 = 28402

The missing number is 28402.



6)  

8 x 10 000 + 6 x 1000 + 9 x 100 + 5 x 1 = _____        

What is the missing number in the blank
Answer: 86905


SOLUTION 1 :

Step 1: 8 x 10000 = 80000
Step 2: 6 x 1000 = 6000
Step 3: 9 x 100 = 900
Step 4: 5 x 1 = 5
Step 5: 80000 + 6000 + 900 + 5 = 86905

The missing number is 86905.



7)  

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

What is the missing number in the blank
Answer: 94306


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 4 x 1000 = 4000
Step 3: 3 x 100 = 300
Step 4: 6 x 1 = 6
Step 5: 90000 + 4000 + 300 + 6 = 94306

The missing number is 94306.



8)  

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

What is the missing number in the blank
Answer: 35709


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 5 x 1000 = 5000
Step 3: 7 x 100 = 700
Step 4: 9 x 1 = 9
Step 5: 30000 + 5000 + 700 + 9 = 35709

The missing number is 35709.



9)  

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

What is the missing number in the blank
Answer: 69101


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 9 x 1000 = 9000
Step 3: 1 x 100 = 100
Step 4: 1 x 1 = 1
Step 5: 60000 + 9000 + 100 + 1 = 69101

The missing number is 69101.



10)  

8 x 10 000 + 9 x 1000 + 7 x 100 + 3 x 1 = _____        

What is the missing number in the blank
Answer: 89703


SOLUTION 1 :

Step 1: 8 x 10000 = 80000
Step 2: 9 x 1000 = 9000
Step 3: 7 x 100 = 700
Step 4: 3 x 1 = 3
Step 5: 80000 + 9000 + 700 + 3 = 89703

The missing number is 89703.