ZIMSEC O-Level Mathematics
1.1Number concepts and operations
Number concepts and operations in ZIMSEC O-Level Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic157 practice questions8 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 1.1.1Identify and use natural numbers, integers, even, odd and prime numbers, rational and irrational numbers, and square and cube numbers.
- 1.1.2Find factors, multiples, prime factorisations, highest common factors and lowest common multiples of whole numbers.
- 1.1.3Convert between common fractions, decimals and percentages and use them in context.
- 1.1.4Calculate percentages of quantities and percentage increases and decreases.
- 1.1.5Order numbers and use the symbols =, ≠, >, <, ≥ and ≤.
- 1.1.6Apply the four operations and the order of operations, including brackets, to whole numbers, fractions, decimals and directed numbers, and use directed numbers in practical situations.
- 1.1.7Find squares, square roots, cubes and cube roots of numbers.
- 1.1.8Recognise, continue and describe number patterns.
Lessons
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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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Sample question
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