# Limits of Accuracy

Students learn how to calculate the limits of accuracy of rounded numbers.  As learning progresses they are challenged to consider the upper and lower bounds of numbers rounded to the nearest decimal place, power of ten and significant figure.
##### Differentiated Learning Objectives
• All students should be able to calculate the upper and lower bounds for a number rounded to the nearest power of ten and decimal place using a number line.
• Most students should be able to calculate the upper and lower bounds for a number rounded to the nearest power of ten and decimal place using mental methods.
• Some students should be able to calculate the upper and lower bounds for a number rounded to the nearest power of ten, decimal place and significant figure.
SKU: 089

### Mr Mathematics Blog

#### Multiplication and Division Rule of Indices

Using the rules of indices students learn how to evaluate expressions in index notation.

#### Problem Solving Maths Lessons

Four new problem solving lessons to develop student’s mathematical reasoning and communication skills.

#### Enlarging Shapes by a Negative Scale Factor

How to teach performing and describing negative scale factor enlargements.