An explanation of what significant figures are, and reasons for using them

Determining which digits are significant in a measured number

How to perform addition and subtraction on values and properly determine significant figures

Using values that are not measured - mathematical constants, numbers in formulas, and counted values

Using multiplication and division of measured and non-measured quantities, using significant figures

Significatnt Figures word problems involving multiple steps with arithmetic operations

'Round Up' vs 'Half to Even' rounding rule - how to round a digit of five