OCR•GCSE•Mathematics
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Number
Calculations, fractions, decimals, percentages, powers and roots
Practice 50 subtopics in Number. All questions match the OCR GCSE specification.
About Number
Number is a key topic in the OCR GCSE Mathematicsspecification. This topic covers calculations, fractions, decimals, percentages, powers and roots.
Master all 50 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (50)
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Random Practice
Practice any subtopic from Number
Place value (I)Ordering positive and negative integersAddition and subtraction of integersMultiplication and division of integersOrder of operations (BIDMAS)Inverse operationsFactors and multiplesPrime numbersPrime factorisationHCF and LCMHCF and LCM from prime factorsHCF and LCM from Venn diagramsSquares, cubes and their rootsIndex notationLaws of indicesZero and negative indices (H)Fractional indices (H)Standard formCalculations in standard formSimplifying surds (H)Rationalising denominators (H)Expanding brackets with surds (H)Equivalent fractionsSimplifying fractionsOrdering fractionsAdding and subtracting fractionsMultiplying fractionsDividing fractionsMixed numbers and improper fractionsFractions of amountsOrdering decimalsAdding and subtracting decimalsMultiplying and dividing decimalsConverting fractions to decimalsConverting decimals to fractionsRecurring decimals (H)Percentage of an amountWriting one number as a percentage of anotherPercentage increase and decreaseReverse percentagesRepeated percentage changeCompound interestDepreciationRounding to decimal placesRounding to significant figuresEstimationTruncationError intervalsUpper and lower bounds (H)Bounds in calculations (H)
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Start with Place value (I)