CBSE · Class 6-12

Topic

Arithmetic & Number Systems

Numbers, integers, fractions, decimals, and how they combine.

12 units·5 classes covered·12 practice-ready

Why this matters

Every rupee you'll ever spend, every distance you'll ever travel, every recipe you'll ever cook — starts here.

Arithmetic isn't the boring bit before the 'real' maths. It IS the maths — the rest of your journey (algebra, calculus, statistics) is Arithmetic wearing a costume. A student who is fast and confident with fractions and negative numbers finds Class 10 half as scary.

The story arc

Class 6Meet fractions, integers and the 'other side of zero'.
Class 7Decimals go deeper; integers get multiplied and divided.
Class 8Squares, cubes, and rational numbers on the number line.
Class 9Irrationals join the party — welcome to real numbers.
Class 10The Fundamental Theorem of Arithmetic locks it all in.

Topic-wise practice paper

Mixed practice — all classes, one paper

15 hand-picked questions spanning every class where this topic appears. Auto-scores with hint ladder + AI Tutor when you're stuck.

Class 6

2 units

Parts of a whole, equivalents, comparison, and operations.

The Other Side of Zero

Introduction to negative numbers and integers.

Class 7

5 units

Large Numbers Around Us

Explore counting and place value up to crores and beyond.

A Peek Beyond the Point

Decimals — reading, comparing, and arithmetic.

Working with Fractions

Advanced fraction operations, word problems, and applications.

Operations with Integers

Advanced integer arithmetic: multiplication, division, powers.

Another Peek Beyond the Point

Deeper decimals — recurring decimals, comparing, rounding.

Class 8

2 units

A Square and A Cube

Squares, square roots, cubes, and cube roots.

A Story of Numbers

Rational numbers: representation, operations, properties.

Class 9

1 unit

The World of Numbers

Rationals, irrationals, real numbers, and decimal expansions.

Class 10

2 units · 2 tracks

Fundamental Theorem of Arithmetic, HCF and LCM by prime factorisation, and the irrationality of numbers like $\sqrt{2}$, $\sqrt{3}$, $\sqrt{5}$.

041 · Standard

Fundamental Theorem of Arithmetic, HCF and LCM by prime factorisation, and the irrationality of numbers like $\sqrt{2}$, $\sqrt{3}$, $\sqrt{5}$.