Numbers – Extended Subtopics
Select a subtopic, then choose Paper 2 (Non-calculator) or Paper 4 (Calculator) to view questions and worksheets.
Types of Numbers
Natural, integers, rational, irrational and more.
Directed Numbers
Positive & negative numbers on number lines.
Percentages
Increase, decrease, reverse percentages and more.
BODMAS, Decimals
Order of operations and decimal calculations.
Fractions
Equivalent fractions, operations and mixed numbers.
Time
Timetables, time differences and word problems.
Currency & Conversions
Exchange rates and unit conversions.
Rounding & Estimation
Rounding to dp, sf and sensible estimates.
Bounds
Upper & lower bounds and error intervals.
Using a Calculator
Efficient calculator skills and checking answers.
Prime Factors, HCF & LCM
Prime factor trees, HCF and LCM problems.
Powers & Roots
Index notation and square / cube roots.
Laws of Indices
Multiplying, dividing and negative / fractional indices.
Standard Form operations
Writing, comparing and calculating in standard form.
Simple & Compound Interest, Exponential Growth & Decay
Percentage change over time and interest problems.
Surds
Simplifying, adding and rationalising surds.