ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

Find which of the following numbers are divisible by 3:
(i) 261
(ii) 777
(iii) 6657
(iv) 2574

1×5 divisible by 3?

31×5 divisible by 3?

28×6 a multiple of 3?

7×34 divisible by 9?

5 × 555 a multiple of 9?

Multiply: 6x³ − 5x + 10 by 4 − 3x²

Multiply: 2y − 4y³ + 6y⁵ by y² + y − 3

Multiply:

5p² + 25pq + 4q² by 2p² − 2pq +3q²

Simplify : (7x – 8) (3x + 2)

Simplify : (px – q) (px + q)

Simplify: (5a + 5b – c) (2b – 3c)

Simplify :  (4x – 5y) (5x – 4y)

Simplify : (3y + 4z) (3y – 4z) + (2y + 7z) (y + z)

The adjacent sides of a rectangle are x² – 4xy + 7y² and x³ – 5xy². Find its area.

The base and the altitude of a triangle are (3x – 4y) and (6x + 5y) respectively. Find its area.

Multiply -4xy³ and 6x²y and verify your result for x = 2 and y= 1.

Find the value of (3x³) × (-5xy²) × (2x²yz³) for x = 1, y = 2 and z = 3.

Evaluate (3x⁴y²) (2x²y³) for x = 1 and y = 2.

Evaluate (x⁵) × (3x²) × (-2x) for x = 1.