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Cambridge IGCSE Mathematics

1Number

Number in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic460 practice questions23 lessons

In this topic

Lessons

  • Factors, multiples, HCF and LCM

    30 min

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  • Types of number

    25 min

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  • Set language and notation

    30 min

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  • Venn diagrams

    35 min

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  • Powers and roots

    25 min

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  • Fractions, decimals and percentages

    35 min

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  • Ordering quantities

    15 min

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  • The four operations

    35 min

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  • Indices with numbers

    30 min

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  • Standard form

    30 min

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  • Estimation and rounding

    30 min

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  • Limits of accuracy

    30 min

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  • Ratio and proportion

    30 min

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  • Rates and compound measures

    30 min

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  • Percentages

    35 min

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  • Profit, loss, discount, commission and hire purchase

    35 min

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  • Simple and compound interest

    35 min

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  • Using a calculator

    25 min

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  • Time

    30 min

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  • Household and personal finance

    35 min

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3 more lessons in this topic. Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Number: sample question

1 mark

Chipo buys a box of oranges for US$12 and sells the oranges for a total of US$15. Calculate her percentage profit.

Answer in %.

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