A free service for South African school students struggling with mathematics.

Give more than you can afford. Take less than you need. Leave every situation better than you found it.

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Numbers

Rounding and calculations

Getting estimates of calculations.
Numbers
Read more: Rounding and calculations

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Rounding

How to round a number to the nearest hundred or thousand, etc.
Numbers
Read more: Rounding

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Inverse operations

Operations used in calculations exist in related pairs called “inverse operations” of each other.
Functions,Numbers
Read more: Inverse operations

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Infinity

Explaining “inifinity” as a concept, not as a number.
Numbers
Read more: Infinity

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Distributive property

A visual explanation of the the distributive property
Numbers
Read more: Distributive property

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Billions and trillions

Billions and trillions mean different things in different countries. This confusion is explained in this…
Exponents,Numbers
Read more: Billions and trillions

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