Cambridge IGCSE Mathematics
1.9Estimation
Estimation in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 1.9.1Round values to a given number of decimal places or significant figures, or to the nearest whole number, ten, hundred or thousand.
- 1.9.2Estimate the results of calculations with numbers, quantities and measurements, for example by rounding each number to one significant figure.
- 1.9.3Give answers to a degree of accuracy that suits the context of a problem.
Lessons
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Estimation and rounding
30 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
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