Edexcel GCSE Mathematics Revision
Explore Edexcel GCSE Mathematics revision topics. Check the official specification for complete requirements for your exam year and route.
Qualification code: 1MA1
Course details
Assessment The assessment includes Paper 1, Paper 2 and Paper 3; see the official specification for the full structure.
Tick a point after revising it. Progress is saved on this device and does not measure mastery.
Reviewed course guidance
Revision points, with the explanation beside them
Open a point to read what to know, how to use it in an assessment, a plain-language explanation and a self-check. Answers stay hidden until you choose to reveal them.
Options and source
Pearson GCSE tier
- Foundation tier
- Higher tier
1MA1 assessment structure: Foundation and Higher tier written papers
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Topic group
Reviewed requirements
- Core
Scope: Core · Pearson GCSE tier: any of Foundation tier, Higher tier · Foundation tier, §1 Number—N1: order positive and negative integers, decimals and fractions; use comparison symbols
Open revision guidance
What to know
- The number line gives the order of integers, decimals and fractions: values increase to the right. Every negative number is below zero, and the negative with the larger magnitude lies further left. Comparison symbols point towards the smaller value.
What to do in an assessment
- Rewrite fractions as equivalent decimals or fractions with a common denominator when needed. Compare the values on a number line, then choose <, > or = without dropping the negative signs.
In plain language
The sign matters before the digits do. For example, −2.1 is less than −1.8 because it is further left, although 2.1 is greater than 1.8. A quick number-line sketch works across fractions, decimals and integers and helps you write a comparison symbol in the correct direction.
Self-check
Which is greater, −5/6 or −0.8?
Show the answer
−0.8 is greater because −5/6 is approximately −0.833, which is further left.
- Core
Scope: Core · Pearson GCSE tier: Foundation tier · Foundation tier, Ratio, proportion and rates of change—R13: understand inverse proportion as proportionality to the reciprocal and interpret equations describing direct and inverse proportion
Open revision guidance
What to know
- If x is directly proportional to y, x=ky for a constant k. If x is inversely proportional to y, x=k/y, equivalently xy=k. The constant k is fixed for a given relationship.
What to do in an assessment
- Identify whether the equation has the form x=ky or x=k/y. For inverse proportion, use xy=k to find the constant or an unknown value, then check that the product remains unchanged.
In plain language
Inverse proportion means that increasing one quantity makes the other decrease in the matching way: doubling y halves x, so their product stays the same. For example, if x is inversely proportional to y and x=6 when y=4, then k=xy=24 and the relationship is x=24/y. At y=8, x=3. By contrast, a direct-proportion relationship has a constant ratio x/y, not a constant product. These equations help you identify which model a question describes without confusing inverse proportion with a general negative correlation.
Self-check
x is inversely proportional to y, and x=5 when y=6. Find x when y=10.
Show the answer
k=5×6=30, so x=30/10=3.
Earlier topic checklist
These earlier topic ticks are separate from the reviewed points above and do not count towards that progress.
Mathematics topic list
This is a topic overview, not a complete specification checklist. Check the official course for all assessed content, options and your exam year.
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These ticks keep your earlier topic checklist. They do not count towards the new reviewed requirements above. Its numbering may be internal; use the linked references above for the exact reviewed source requirements.
Foundation tier topics
Higher tier topics
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