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Mathematics
Number Operations and Integers
Inverse Operations
Checking Calculations
Checking Calculations
OCR GCSE Mathematics (J560) — Number Operations and Integers
What You Need to Know
Understand that addition/subtraction, multiplication/division, and powers/roots are inverse pairs.
Apply inverse operations to simplify expressions and verify calculations.
Solve reverse arithmetic problems, such as 'I’m thinking of a number' or 'missing digit' puzzles.
Revision Notes
1
Checking Calculations
13 key terms
Practise with Past Papers
Key Terms & Definitions
Previous Topic: Mixed Operations
Order of Operations
Next Section: Fractions, Decimals and Percentages
Fraction Equivalence
