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ZIMSEC O-Level Mathematics

1Real numbers

Real numbers in ZIMSEC O-Level Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic297 practice questions15 lessons

In this topic

Lessons

  • Factors, multiples, HCF and LCM

    30 min

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  • Fractions, decimals and percentages

    35 min

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  • Ordering quantities

    15 min

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  • Percentages

    35 min

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  • Powers and roots

    25 min

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  • Sequences and number patterns

    30 min

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  • The four operations

    35 min

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  • Types of number

    25 min

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  • Estimation and rounding

    30 min

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  • Limits of accuracy

    30 min

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  • Rates and compound measures

    30 min

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  • Ratio and proportion

    30 min

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  • Standard form

    30 min

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  • Number bases

    35 min

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  • Scale drawings and map scales

    30 min

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Sample question

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

Real numbers: sample question

1 mark

The nnth term of a sequence is 4n−14n - 1. Find the 10th term.

Only if the answer has a unit, e.g. cm or km/h.

Turn Real numbers into a strength.

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