GK Questions on Class 7 Maths

Q: What is the smallest natural number?

1 Natural numbers start from 1.

Q: What is the smallest whole number?

0 Whole numbers include 0 and all natural numbers.

Q: Which is the smallest prime number?

2 It is also the only even prime number.

Q: How many sides does a triangle have?

3 A triangle is the simplest polygon.

By Swati Singh

Updated on 19 Dec 2025, 15:23 IST

We have created a collection of maths quiz questions designed especially for students to strengthen their understanding of the subject. These questions are framed around core mathematical ideas and focus on building strong fundamentals. Each question comes with four multiple-choice options, from which students need to select the correct answer.

The quiz is suitable for learners from Classes 6 to 10, as it covers basic arithmetic operations and introductory geometry concepts. Practising these questions not only improves accuracy and speed but also prepares students to confidently take part in school-level quiz competitions.

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Regularly attempting these quizzes helps students enhance their logical thinking and problem-solving abilities. The questions are simple, engaging, and quick to solve, making learning enjoyable. Students are encouraged to attempt all the questions to assess their skills and track their progress effectively.

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GK Questions on Class 7 Maths with Solutions

1. What is the smallest prime number?

Answer: 2
Solution: 2 has only two factors: 1 and 2.

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2. What is the value of $7 \times 8$ $7$ $\times$ $8$ ?

Answer: 56
Solution: Multiplying 7 by 8 gives 56.

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3. How many sides does a heptagon have?

Answer: 7
Solution: “Hepta” means seven.

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4. What is the place value of 5 in 5,432?

Answer: 5,000
Solution: 5 is in the thousands place.

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5. What is the sum of the first 10 natural numbers?

Answer: 55
Solution:

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\frac{n(n+1)}{2} = \frac{10 \times 11}{2} = 55

$2$ $n$ $($ $n$ $+$ $1$ $)$ $$ $=$ $210$ $\times$ $11$ $$ $=$ $55$

6. Which number is neither prime nor composite?

Answer: 1
Solution: 1 has only one factor.

7. What is the value of $3^2$ $3$ $2$ ?

Answer: 9
Solution: $3 \times 3 = 9$ $3$ $\times$ $3$ $=$ $9$

8. What is the perimeter of a square of side 6 cm?

Answer: 24 cm
Solution:

4 \times 6 = 24 \text{ cm}

$4$ $\times$ $6$ $=$ $24$ $cm$

9. How many degrees are there in a right angle?

Answer: 90°
Solution: A right angle always measures 90°.

10. What is the reciprocal of 4?

Answer: $\frac{1}{4}$ $41$ $$
Solution: Reciprocal of a number $n$ $n$ is $\frac{1}{n}$ $n$ $1$ $$ .

11. What is the value of $15 \div 3$ $15$ $\div$ $3$ ?

Answer: 5
Solution: 15 divided by 3 equals 5.

12. Which fraction represents half?

Answer: $\frac{1}{2}$ $21$ $$
Solution: One part out of two equal parts.

13. What is the LCM of 4 and 6?

Answer: 12
Solution:
Multiples of 4: 4, 8, 12
Multiples of 6: 6, 12
LCM = 12

14. What is the HCF of 12 and 18?

Answer: 6
Solution:
Common factors: 1, 2, 3, 6
Highest = 6

15. What is the area of a rectangle with length 8 cm and breadth 5 cm?

Answer: 40 cm²
Solution:

8 \times 5 = 40

$8$ $\times$ $5$ $=$ $40$

16. Which number comes after 999?

Answer: 1000
Solution: Adding 1 to 999 gives 1000.

17. How many faces does a cube have?

Answer: 6
Solution: A cube has 6 square faces.

18. What is the value of $20\%$ $20%$ of 50?

Answer: 10
Solution:

\frac{20}{100} \times 50 = 10

$10020$ $$ $\times$ $50$ $=$ $10$

19. Which angle is greater than 90° but less than 180°?

Answer: Obtuse angle
Solution: Obtuse angles lie between 90° and 180°.

20. What is the decimal form of $\frac{1}{4}$ $41$ $$ ?

Answer: 0.25
Solution:

1 \div 4 = 0.25

$1$ $\div$ $4$ $=$ $0.25$

21. What is the value of $6 \times 0$ $6$ $\times$ $0$ ?

Answer: 0
Solution: Any number multiplied by zero is zero.

22. How many vertices does a triangle have?

Answer: 3
Solution: A triangle has 3 corners.

23. What is the sum of angles of a triangle?

Answer: 180°
Solution: Sum of interior angles of a triangle is always 180°.

24. Which number is an even number: 17 or 18?

Answer: 18
Solution: Even numbers are divisible by 2.

25. What is the value of $100 \div 10$ $100$ $\div$ $10$ ?

Answer: 10
Solution: Dividing by 10 shifts the decimal one place left.

26. What is the smallest 2-digit number?

Answer: 10
Solution: Two-digit numbers start from 10.

27. What is the perimeter of a rectangle with length 10 cm and breadth 4 cm?

Answer: 28 cm
Solution:

2(10 + 4) = 28

$2$ $($ $10$ $+$ $4$ $)$ $=$ $28$

28. What is the value of $9^2$ $9$ $2$ ?

Answer: 81
Solution:

9 \times 9 = 81

$9$ $\times$ $9$ $=$ $81$

29. What is the Roman numeral for 50?

Answer: L
Solution: In Roman numerals, L represents 50.

30. What is the fraction form of 0.5?

Answer: $\frac{1}{2}$ $21$ $$
Solution:

0.5 = \frac{5}{10} = \frac{1}{2}

$0.5$ $=$ $105$ $$ $=$ $21$ $$

31. How many edges does a cube have?

Answer: 12
Solution: A cube has 12 edges.

32. What is the value of $2 + 3 \times 4$ $2$ $+$ $3$ $\times$ $4$ ?

Answer: 14
Solution:
Multiply first: $3 \times 4 = 12$ $3$ $\times$ $4$ $=$ $12$
Then add: $2 + 12 = 14$ $2$ $+$ $12$ $=$ $14$

33. What is the value of $\frac{3}{5}$ $53$ $$ of 20?

Answer: 12
Solution:

\frac{3}{5} \times 20 = 12

$53$ $$ $\times$ $20$ $=$ $12$

34. Which shape has only one curved surface?

Answer: Sphere
Solution: A sphere has no edges or vertices.

35. What is the value of 1 km in metres?

Answer: 1000 m
Solution: 1 kilometre = 1000 metres.

36. What is the predecessor of 100?

Answer: 99
Solution: Predecessor means one less.

37. What is the successor of 999?

Answer: 1000
Solution: Successor means one more.

38. How many sides does a pentagon have?

Answer: 5
Solution: “Penta” means five.

39. What is the value of $4^3$ $4$ $3$ ?

Answer: 64
Solution:

4 \times 4 \times 4 = 64

$4$ $\times$ $4$ $\times$ $4$ $=$ $64$

40. What is the smallest whole number?

Answer: 0
Solution: Whole numbers start from 0.

41. Which operation gives the total?

Answer: Addition
Solution: Addition combines values.

42. What is the value of $7 + 13$ $7$ $+$ $13$ ?

Answer: 20
Solution:

7 + 13 = 20

$7$ $+$ $13$ $=$ $20$

43. What is the area of a square of side 9 cm?

Answer: 81 cm²
Solution:

9 \times 9 = 81

$9$ $\times$ $9$ $=$ $81$

44. What is the value of $45 \div 5$ $45$ $\div$ $5$ ?

Answer: 9
Solution:

45 \div 5 = 9

$45$ $\div$ $5$ $=$ $9$

45. How many angles does a quadrilateral have?

Answer: 4
Solution: A quadrilateral has 4 sides and 4 angles.

46. What is the fraction form of 25%?

Answer: $\frac{1}{4}$ $41$ $$
Solution:

25\% = \frac{25}{100} = \frac{1}{4}

$25%$ $=$ $10025$ $$ $=$ $41$ $$

47. What is the value of $10^2$ $10$ $2$ ?

Answer: 100
Solution:

10 \times 10 = 100

$10$ $\times$ $10$ $=$ $100$

48. Which number is divisible by both 2 and 3: 12 or 14?

Answer: 12
Solution: 12 is divisible by both 2 and 3.

49. How many minutes are there in 1 hour?

Answer: 60
Solution: 1 hour = 60 minutes.

50. What is the shape of a dice?

Answer: Cube
Solution: A dice has 6 equal square faces.

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GK Questions on Class 7 Maths FAQs

What is the smallest natural number?

Natural numbers start from 1.

What is the smallest whole number?

Whole numbers include 0 and all natural numbers.

What is a prime number?

A number having exactly two factors: 1 and itself.

Which is the smallest prime number?

It is also the only even prime number.

What is a composite number?

A number having more than two factors.

What does HCF stand for?

Highest Common Factor

It is the greatest number that divides two or more numbers.

What does LCM stand for?

Least Common Multiple

It is the smallest number divisible by two or more given numbers.

How many sides does a triangle have?

A triangle is the simplest polygon.

What is the sum of angles of a triangle?

180°

This is true for all types of triangles.