Class 8 Mathematics Notes

Square numbers, square roots, perfect cubes, cube roots and their patterns.

Exponents, laws of exponents, negative powers and scientific notation for very large and small numbers.

How number systems developed: tallies, bases, place value and the Indian numeral system.

Rectangles, squares, parallelograms, rhombuses, trapeziums and kites, their properties and angle sum.

Divisibility rules, digit sums, consecutive numbers and number puzzles with reasoning.

The distributive property, multiplying expressions and the standard algebraic identities.

Ratios, equivalent ratios, proportion and solving problems with the unitary method.

Percentages as fractions, percentage increase and decrease, profit, loss and discount.

The theorem, its proofs, Pythagorean triples and applications to right triangles.

Direct and inverse proportion, compound ratios and real-life proportion problems.

Fractals, visualising solids, nets of 3-D shapes and views from different sides.

Data and graphs: line graphs, reading trends and interpreting data stories.

Using algebra to explain number tricks and puzzles, and solving linear equations.

Area of parallelograms, triangles, trapeziums, rhombuses and general quadrilaterals.