Fractions and Percentages

When we say "Percent" we are really saying "per 100"

TERMAU MATHEMATEG – TGAU UWCH

Area

When we buy carpet, paint, turf etc, we need to know the area of the space we are covering.

We know how to measure around the outside of a shape, but how do we measure the space inside it?

Perimeter

In mathematics, the perimeter is the distance around a two-dimensional shape or the border or outer boundary of a two-dimensional figure.

For example: the perimeter of this rectangle is 3+7+3+7 = 20

Illustrating Data

Illustrating Data

Using visual representations to present data makes them easier to understand. When you decide what kind of graph or chart best illustrates your data, you should consider what type of data you are working with.

Graphs and charts condense large amounts of information into easy-to-understand formats that clearly and effectively communicate important points

Different types of graph and chart have different uses.

The Link Between Fractions, Decimals & Percentages

The Link Between Fractions, Decimals & Percentages

Any  number can be written as a fraction, decimal or percent. The term percent is simply another name for hundredths. For example, 25% (twenty-five per cent) is the same as 25/100. 

To multiply a decimal number by 10, simply move the decimal point one place to the right. To multiply by 100, move the decimal point two places to the right. 

Multiplication as a Quick Way of Adding & The Multiplication Square

Multiplication as a Quick Way of Adding & the Multiplication Square

Multiplying is a quick way of adding.

If you are unsure of your multiplication tables; use this square to help. 

Remember: to inverse check; use division.