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Cheat Sheet

Take a look to our Cheat Sheet with some of the major mathematical concepts. You can download them to be by your side when you study.


We have a set of calculators to help you quickly perform a series of calculations. Calculate the roots of a quadratic equation, step by step!


Check out our list of formulas, symbols, curves and more! Search our list of frequently asked questions for answers to your questions.


With the help of Geogebra Software, you will finally be able to understand some important concepts of geometry. Give it a try!

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Challenge of the day:

Math challenge of the day

To see math challenges from previous days visit Math Problems.

Quote of the day:

"The study of mathematics is apt to commence in disappointment... We are told that by its aid the stars are weighed and the billions of molecules in a drop of water are counted. Yet, like the ghost of Hamlet's father, this great science eludes the efforts of our mental weapons to grasp it."

Alfred North Whitehead

Question of the day:

How much time does 1 million seconds correspond to?

see answer

Term of the day:

Common denominator

A number that can be divided evenly by all denominators in the problem.

Image of the day:

image with mathematical humor