Number
Overview
– Place value and estimating
– HCF and LCM
– Calculating with powers (indices)
– Zero, negative and fractional indices
– Powers of 10 and standard form
– Surds
Example Key Words
Significant Figure
The first non zero digits of a number
Factors
A number that divides exactly into another number
Multiple
A value in the number’s time table
Indices
Indices show how many times a number or letter has been multiplied by itself.
Standard Form
A way of writing very large and very small numbers using a power of 10
Surd
A surd is an expression that includes a square root and the value is an irrational number