GCSE Maths Sign Error Help
Sign errors are one of the most common causes of lost marks in GCSE Maths, especially in algebra and negative number questions.
Where Sign Errors Happen
- Subtracting negative numbers
- Expanding brackets
- Solving equations
- Using coordinates and gradients
Exam tip: Circle negative signs in working so they are not accidentally missed.
Common mistake: A minus sign in front of a bracket changes every term inside the bracket.
Video explanation
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