GK question

GK Questions for Class 8

Gk questions for class 8: Mathematics

Maths plays an important role when it comes to understanding subjects like physics, social science, chemistry, etc. Quiz questions for class 8 with answers show the way to build mental discipline and encourage mental rigor and logical reasoning. 

1. Mention any four rational numbers which are less than 5?

-1, 1, 2 and 3

 

2. What is the multiplicative inverse of -3/11 and -3?

-3/11 = -11/3 and -1/3

 

3. Name the additive and multiplicative identities of rational numbers.

1 and 0

 

4. What is the associative property applicable to?

Addition and multiplication

 

5. What is the multiplicative identity of rational numbers?

1

 

6. Which is the smallest perfect number?

6

 

7. What is QAD?

Quod Erat Demonstrandum

 

8. What is the sum of the first four odd natural numbers?

16

 

9. What are the two classifications of the surface area of a hemisphere?

CSA(Curved Surface Area) and TSA(Total Surface Area)

 

10. Give two real-life examples of hollow hemispheres.

Coconut shell and bowl

 

11. What are the first ten prime numbers?

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

 

12. How many factors do a prime number have?

1 and the number itself

 

13. What is an algebraic expression with one term called?

Monomial

 

14. What type of term 2x+7y is?

Binomial

 

15. Which bar graph shows data in intervals?

Histogram

 

16. What is a whole unbroken line called in a line graph?

Linear graph

 

17. How many centimetres make a decameter?

1000

 

18. Which is the only number that cannot be used as a divisor?

0

 

19. What is the ratio of 10 metres to 10 km?

1:1000

 

20. What is the percentage of 2:5?

40%

 

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