Category: Number

Trail and Improvement 0

Trail and Improvement

In this chapter we shall be exploring the trail and improvement method. Trail and improvement is used to find approximate answers to quite complicated equations especially equations involving cubic (x3). The trial and improvement...

Lowest common multiple (LCM) 0

Lowest common multiple (LCM)

The abbreviation LCM used very commonly in maths stands for Lowest Common Multiple. Lowest common multiple of a list of numbers is the smallest (lowest) number that can be divided by all the numbers...

Highest Common factor (HCF) 3

Highest Common factor (HCF)

HCF stands for Highest Common Factor. Highest common factor is the biggest number that can be divided into all the numbers in the given list. In most cases to find the highest common factor...

Multiplying Decimals 2

Multiplying Decimals

In this chapter we shall be looking at multiplying decimal numbers together. This should be straight forward and simple. Work out 0.6 x 0.8 To work out this easily we’re going to make the...

Prime Factorisation 0

Prime Factorisation

In this section we shall be looking at prime factorisation. You will be able to understand highest common factors and how to use factor trees to find the highest common factors HCF. What is...

Significant figures 1

Significant figures

Rounding off numbers to a certain degree of accuracy is often necessary in many applications. For example 5,625,000 can be rounded off to one significant figure to make the figure simple or easy to...

Odd and Even numbers 0

Odd and Even numbers

Even numbers are numbers which can be divided evenly by 2. For example the number 8 can be divided into two numbers (4) Odd numbers are numbers which cannot be divided evenly by two....

surds 6

surds

Surds are popular in mathematics similarly to indices. In fact you can imagine surds as being the opposite of indices. …because while squaring a number such as 2² gives 4. [IMAGE] …the square root...

Rules of Indices 35

Rules of Indices

An indice is a number with a power; for example am; a is called the base and m is the power. The power is also often referred to as the “index” or “exponent”. Indices...