The mathematics library

Mathematics, worked through.

Follow the reasoning, study worked examples, and test your understanding with practice papers. Free solutions for Punjab Class 9 and Class 10, growing one unit at a time.

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Available to study

Class 9 Mathematics

Punjab Textbook Board

Begin with Real Numbers: worked exercises, review questions and practice papers.

1 of 13 units publishedOpen book — Class 9

Available to study

Class 10 Mathematics

PECTAA

Begin with Complex Numbers: worked exercises, review questions and practice papers.

1 of 12 units publishedOpen book — Class 10

In preparation

One unit is published in each of Classes 9 and 10; the other units, and Classes 11 and 12, are in preparation. These are independent study resources, not official board publications. Each book states the textbook edition it follows.

Interactive mathematicsExplore patterns, curves, and chance.

Choose an idea to explore

Odd numbers build a squareAdd successive odd-sized layers to grow a square. Use the slider to explore.
Each new border makes the square one tile wider.

What do odd numbers build?

Grow the square. Watch what each new layer adds.

The idea behind it