Students can Download Maths Chapter 5 Squares, Square Roots, Cubes, Cube Roots Ex 5.1 Questions and Answers, Notes Pdf, KSEEB Solutions for Class 8 Maths helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.

## Karnataka Board Class 8 Maths Chapter 5 Squares, Square Roots, Cubes, Cube Roots Ex 5.1

Question 1.

Express the following statements mathematically.

(i) Square of 4 is 16

Answer:

4 × 4 = 16

4^{2} = 16

(ii) Square of 8 is 64

Answer:

8 × 8 = 64

8^{2} = 64

(iii) Square of 15 is 225

Answer:

15 × 15 = 225

15^{2} = 225

Question 2.

Identify the perfect squares among the following numbers. 1, 2, 3, 8, 36, 49, 65, 67, 71, 81, 169, 625, 125, 900, 100, 1000, 100000.

Answer:

The perfect squares are 1 = 2^{2}, 36 = 6^{2},49 = 7^{2}, 81 = 9^{2}, 169 = 13^{2}, 625 = 25^{2}, 900 = 30^{2}, 100 = 10^{2}.

Question 3.

Make a list of all perfect squares from 1 to 500.

Answer:

The Perfect square from 1 to 500 are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361, 400, 441, 484.

Question 4.

Write 3- digit numbers ending with 0, 1, 4, 5, 6, 9 one for each digit but none of them is a perfect square

Answer:

200, 201, 204, 205, 206, 209.

Question 5.

Find the numbers from 100 to 400 that end with 0, 1, 4, 5, 6, or 9 which are perfect squares.

Answer:

100, 121, 144, 169, 196, 225, 256, 289, 324, 36