Bounds and error intervals GCSE questions
Bounds and error intervals GCSE questions with worked answers. Attempt them first, then check. Full method is on the Bounds and error intervals lesson.
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Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
A mass is 40 kg to the nearest 10 kg. Write the error interval.
7.6 to 1 d.p. Lower bound?
x = 4.2 to 1 d.p. Maximum value of 10 / x?
Common mistakes
- Using ≤ on both ends of the error interval for continuous measures.
- Always multiplying two lower bounds when a maximum is required.
Answers and working
Frequently asked questions
Where is the full lesson?
See Bounds and error intervals: https://revise-easy.com/gcse-maths/number/bounds/
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