What topics are included in GCSE Maths Number?
GCSE Maths Number includes place value, rounding, fractions, decimals, percentages, powers, roots, standard form, surds, estimation and error intervals.
GCSE Maths Category
Build strong GCSE Maths number skills, including place value, fractions, decimals, percentages, powers, roots, standard form, rounding and number operations.
What is Number?
Number is one of the most important areas of GCSE Maths.
It includes the core skills needed for almost every other topic, such as fractions, decimals, percentages, powers, roots and rounding.
Number Topics
Types of Numbers
Learn about natural numbers, integers, primes, square numbers and other key number types used in GCSE Maths.
Integers and Directed Numbers
Work with positive and negative numbers using number lines and arithmetic rules.
Place Value and Rounding
Understand place value, round numbers correctly and estimate with confidence.
Order of Operations (BIDMAS)
Apply the correct order of operations when solving calculations with brackets, indices and mixed operations.
Factors and Multiples
Find factors, multiples, prime factors, HCF and LCM in number problems.
Powers and Roots
Learn squares, cubes, roots and index notation for numerical calculations.
Fractions
Add, subtract, multiply and divide fractions, and convert them into other forms.
Decimals
Read, compare and calculate with decimals accurately in GCSE Maths questions.
Percentages
Calculate percentages, percentage amounts and percentage conversions with confidence.
Standard Form
Write very large and very small numbers in standard form and use them in calculations.
Surds
Simplify and manipulate surds without converting them into decimals.
Recurring Decimals
Convert recurring decimals into fractions and understand their exact values.
Estimation
Round values sensibly and estimate answers to check if results are reasonable.
Error Intervals
Use upper and lower bounds to describe the range of possible values after rounding.
Recommended Learning Order
1
2
3
4
5
Fractions
Add, subtract, multiply and divide fractions, and convert them into other forms.
Decimals
Read, compare and calculate with decimals accurately in GCSE Maths questions.
Percentages
Calculate percentages, percentage amounts and percentage conversions with confidence.
Surds
Simplify and manipulate surds without converting them into decimals.
Estimation
Round values sensibly and estimate answers to check if results are reasonable.
Exam Focus
- Show working clearly for calculations.
- Check whether the answer should be exact, rounded or estimated.
- Use correct place value when rounding.
- Be careful with negative numbers, powers and roots.
- Use standard form correctly for very large and very small numbers.
Common Mistakes
- Rounding too early.
- Mixing up decimal places and significant figures.
- Forgetting negative signs.
- Writing standard form incorrectly.
- Using percentage methods without checking the question wording.
Number FAQs
What should I revise first in Number?
Start with types of numbers, place value, directed numbers and order of operations before moving on to fractions, decimals and percentages.
Is Number important for Higher GCSE Maths?
Yes. Higher topics such as surds, standard form, recurring decimals and error intervals all depend on strong number skills.