chapters · 8
01FREE
Large Numbers Around Us
Lakhs, crores, millions and billions: how to read, write, compare and estimate really big numbers.
6 concepts
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02PREMIUM
Arithmetic Expressions
How to read and simplify expressions, and why brackets and order matter.
8 concepts
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03PREMIUM
A Peek Beyond The Point
Smaller units, and how decimals let you measure more precisely.
7 concepts
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04PREMIUM
Expressions Using Letter-numbers
Use letters to stand for numbers, and write patterns you can't solve at a glance.
6 concepts
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05PREMIUM
Parallel And Intersecting Lines
Lines that meet and lines that never do, and the angles they make.
6 concepts
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06PREMIUM
Number Play
Puzzles and patterns hidden in numbers.
7 concepts
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07PREMIUM
A Tale Of Three Intersecting Lines
Triangles: their parts, and whether any three lengths can make one.
7 concepts
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08PREMIUM
Working With Fractions
Add, subtract, multiply and divide fractions, starting with a real sharing problem.
7 concepts
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