## Surds

Want to download the Surds revision notes in PDF format? What are Surds? Surds are an expression in root form such as square root, cube root and other in a root symbol.  A surd cannot be simplified to remove the root symbol. It does not have an exact decimal value and cannot be represented by …

## Proportions

Want to download the Proportions revision notes in PDF format? Proportion is represented by two equal ratios. There is direct and indirect proportion. With direct proportion, the two variables change at the same rate. Direct Proportion With direct proportion, the two variable change at the same time. In direct proportion, as the first variable increases …

## Positive and Negative Numbers

Want to download the Positive and Negative numbers revision notes in PDF format? What are Positive and Negative Numbers? Observe this number line.  What have you noticed?Looking at this number line, you will notice that it consists of numbers with a sign and zero. The sign of a number can be a positive or a …

## Decimal numbers

Want to download the Decimal numbers revision notes in PDF format? What are Decimal Numbers? Decimal numbers are any usual fraction, which can be written as a fraction with the number $$10^{n}$$ (n∈N) in the denominator. For example,  $$\frac{5}{100} , \frac{236}{1000} , \frac{389}{100}$$ . Decimal numbers are written by using dot or comma. An \(\color{blue} …

## Fractions

Want to download the Fractions revision notes in PDF format? Ordinary fractions are used for counting the parts of a subject. For example, the amount of juice in the glasses can be described by fractions. In order to write a fraction, you need to know how many parts the whole is divided into and how …

## Numbers – Types & Definition

Want to download the Numbers – Types & Definition revision notes in PDF format? Numbers are words, symbols or figures used in counting and making calculations. A number represents a particular quantity and indicates an order or sequence. It can be a sign number, fraction, surd and decimal. Types of Numbers IntegersIntegers are whole numbers, …