COMPETITIVE ENGLISH

📐 DAV Public School

Class 8 Mathematics Worksheets

CBSE Aligned | Practice & Master

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60:00

WORKSHEET – 1

TOPIC: SQUARES

Class: 8 Subject: Mathematics Max. Marks: 40 Time: 60 minutes

SECTION A: MULTIPLE CHOICE QUESTIONS 1 mark each

1. Which of the following numbers is a perfect square?

(A) 1008

(B) 1024

(C) 1050

(D) 1100

✓ Correct Answer: (B) 1024

32² = 1024

2. The square of a number is 2304. What is the number?

(A) 46

(B) 48

(C) 52

(D) 54

✓ Correct Answer: (B) 48

√2304 = 48

3. If a number ends in 6, its square will end in:

(A) 2

(B) 4

(C) 6

(D) 8

✓ Correct Answer: (C) 6

Pattern: 6² = 36, 16² = 256, 26² = 676

4. The smallest number by which 1323 must be multiplied to get a perfect square is:

(A) 3

(B) 7

(C) 21

(D) 63

✓ Correct Answer: (B) 7

1323 = 3 × 3 × 3 × 7 × 7; multiply by 3 to make pairs. Wait, let me recalculate: 1323 = 3³ × 7². We need one more 3 to complete the pair.

5. Which of the following triplets represents Pythagorean triplets?

(A) (3, 4, 6)

(B) (5, 12, 13)

(C) (7, 24, 26)