Approximation and Estimation
This chapter covers how to understand the difference between approximation and estimation, round off numbers to a given number of decimal places, identify significant figures using the 5 rules.
Secondary 17 sectionsO-Level Mathematics (4052)
Learning Outcomes
- Understand the difference between approximation and estimation
- Round off numbers to a given number of decimal places
- Identify significant figures using the 5 rules
- Round off numbers to a given number of significant figures
- Estimate computations by rounding to 1 significant figure
- Apply estimation in real-world contexts (currency, value for money, sampling)
Start reading
7 sections, beginning with Why Approximation and Estimation Matter.
Practise this chapter
Questions on Approximation and Estimation, marked as you go, with the working shown.