Geometry

Squares, Rectangles and Rhombuses are all actually also special types of Parallelograms.

Metric Units

If you completely fill a 10cm × 10cm × 10cm box with water, then it will be 1 litre of water, and it will weigh 1kg.

My teacher called me average. That was a mean thing to say.

Probability

If you roll two dice, the result you are most likely to get is 7.

Time

There are 604 800 seconds in a week.

Pi

The symbol π was first used for the ratio of a circle’s circumference to its diameter in 1706 by William Jones, a Welsh mathematician.

Numbers that aren’t divisible by 2 just seem odd to me.

Percentages

x% of y = y% of x

This useful fact can make percentage questions easier – for example, 6% of 50 is the same as 50% of 6, so the answer is 3!

Metric System

Only 3 countries in the world don’t use the metric system – the United States, Myanmar and Liberia.