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 + 5 x 1000 + 1 x 100 + 5 x 1 = _____        

What is the missing number in the blank


Answer:_______________




2)  

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

What is the missing number in the blank


Answer:_______________




3)  

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

What is the missing number in the blank


Answer:_______________




4)  

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

What is the missing number in the blank


Answer:_______________




5)  

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

What is the missing number in the blank


Answer:_______________




6)  

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

What is the missing number in the blank


Answer:_______________




7)  

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

What is the missing number in the blank


Answer:_______________




8)  

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

What is the missing number in the blank


Answer:_______________




9)  

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

What is the missing number in the blank


Answer:_______________




10)  

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

What is the missing number in the blank


Answer:_______________




 

1)  

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

What is the missing number in the blank
Answer: 95105


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 5 x 1000 = 5000
Step 3: 1 x 100 = 100
Step 4: 5 x 1 = 5
Step 5: 90000 + 5000 + 100 + 5 = 95105

The missing number is 95105.



2)  

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

What is the missing number in the blank
Answer: 42902


SOLUTION 1 :

Step 1: 4 x 10000 = 40000
Step 2: 2 x 1000 = 2000
Step 3: 9 x 100 = 900
Step 4: 2 x 1 = 2
Step 5: 40000 + 2000 + 900 + 2 = 42902

The missing number is 42902.



3)  

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

What is the missing number in the blank
Answer: 91607


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 1 x 1000 = 1000
Step 3: 6 x 100 = 600
Step 4: 7 x 1 = 7
Step 5: 90000 + 1000 + 600 + 7 = 91607

The missing number is 91607.



4)  

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

What is the missing number in the blank
Answer: 54101


SOLUTION 1 :

Step 1: 5 x 10000 = 50000
Step 2: 4 x 1000 = 4000
Step 3: 1 x 100 = 100
Step 4: 1 x 1 = 1
Step 5: 50000 + 4000 + 100 + 1 = 54101

The missing number is 54101.



5)  

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

What is the missing number in the blank
Answer: 67707


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 7 x 1000 = 7000
Step 3: 7 x 100 = 700
Step 4: 7 x 1 = 7
Step 5: 60000 + 7000 + 700 + 7 = 67707

The missing number is 67707.



6)  

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

What is the missing number in the blank
Answer: 68205


SOLUTION 1 :

Step 1: 6 x 10000 = 60000
Step 2: 8 x 1000 = 8000
Step 3: 2 x 100 = 200
Step 4: 5 x 1 = 5
Step 5: 60000 + 8000 + 200 + 5 = 68205

The missing number is 68205.



7)  

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

What is the missing number in the blank
Answer: 36503


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 6 x 1000 = 6000
Step 3: 5 x 100 = 500
Step 4: 3 x 1 = 3
Step 5: 30000 + 6000 + 500 + 3 = 36503

The missing number is 36503.



8)  

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

What is the missing number in the blank
Answer: 33809


SOLUTION 1 :

Step 1: 3 x 10000 = 30000
Step 2: 3 x 1000 = 3000
Step 3: 8 x 100 = 800
Step 4: 9 x 1 = 9
Step 5: 30000 + 3000 + 800 + 9 = 33809

The missing number is 33809.



9)  

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

What is the missing number in the blank
Answer: 85603


SOLUTION 1 :

Step 1: 8 x 10000 = 80000
Step 2: 5 x 1000 = 5000
Step 3: 6 x 100 = 600
Step 4: 3 x 1 = 3
Step 5: 80000 + 5000 + 600 + 3 = 85603

The missing number is 85603.



10)  

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

What is the missing number in the blank
Answer: 96305


SOLUTION 1 :

Step 1: 9 x 10000 = 90000
Step 2: 6 x 1000 = 6000
Step 3: 3 x 100 = 300
Step 4: 5 x 1 = 5
Step 5: 90000 + 6000 + 300 + 5 = 96305

The missing number is 96305.