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Worksheet on Definition of Natural Numbers

Worksheet of Natural Numbers

Solved Questions on Natural Numbers

1. What is the next natural number after 8?

a) 12
b) 14
c) 9
d) 11

Explanation: The next natural number after 8 is 9.

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

a) 55
b) 14
c) 45
d) 11

Explanation: The sum of the first 10 natural numbers is 55 (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10).

3. What is the product of the first 5 natural numbers?

a) 140
b) 120
c) 90
d) 11

Explanation: The product of the first 5 natural numbers is 120 (1 x 2 x 3 x 4 x 5).

4. What is the difference between the square of the fourth natural number and the fourth natural number?

a) 12
b) 14
c) 9
d) 11

Explanation: The fourth natural number is 4 and the square of 4 is 16. The difference between 16 and 4 is 12.

5. What is the smallest natural number that is divisible by both 6 and 8?

a) 22
b) 24
c) 29
d) 21

Explanation: The smallest natural number that is divisible by both 6 and 8 is 24.

6. What is the largest natural number that is a factor of both 24 and 36?

a) 11
b) 14
c) 19
d) 12

Explanation: The largest natural number that is a factor of both 24 and 36 is 12.

Practice Questions on Natural Numbers

1. What is the next number in the sequence: 2, 4, 6, 8, 10, _____?

a) 12
b) 14
c) 9
d) 11

2. Which of the following is a natural number?

a) -3
b) 0
c) 5
d) 1/2

3. What is the product of the first 4 natural numbers?

a) 20
b) 24
c) 60
d) 45

4. What is the difference between the sum of the cubes and that of squares of the first 10 natural numbers?

a) 2190
b) 2640
c) 3110
d) 3420

5. How many factors does the number 15 have?

a) 2
b) 4
c) 6
d) 8

6. What is the greatest common divisor of 24 and 40?

a) 8
b) 12
c) 24
d) 36

7. Is the number zero a natural number?

a) True
b) False
c) Cannot be determined
d) None of the above

8. What is the sum of the first seven natural numbers?

a) 28
b) 32
c) 36
d) 40

9. How many even numbers are there between 50 and 100 (both inclusive)?

a) 25
b) 26
c) 27
d) 28

10. How many odd numbers are there between 20 and 30?

a) 5
b) 6
c) 7
d) 8

Quick Video Recap

In this section, you will find interesting and well-explained topic-wise video summary of the topic, perfect for quick revision before your Olympiad exams.

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