Download a copy of the question here: QT Bounds

Here’s a copy of the written answers: QT Bounds ANSWERS

Here’s the question for this video:

1. A rectangle has a length of 14cm, correct to the nearest cm, and a width of 4.3cm, correct to the nearest mm.

a) Calculate the upper bound for the perimeter of the rectangle.

(2 marks)

b) Calculate the lower bound for the area of the rectangle.

(2 marks)

Here’s the question for this video:

In the formula S = D/T

d = 6.73 correct to 2 decimal places

t = 3.456 correct to 3 decimal places

Calculate the upper bound for s. Give your answer to 3 decimal places.

Here’s the question for this video:

In the formula v^2= u^2 + 2as

v = 48.35 correct to 2 decimal places

a = 9.81 correct to 2 decimal places

s = 45.2 correct to 1 decimal place

Calculate the upper bound for u. Give your answer to 3 decimal places.

These videos are a quick reminder of bounds for GCSE maths, and are aimed at around grade 7. Questions on bounds appear infrequently on GCSE papers, mainly towards Q20 onwards, and are usually calculator.

Bounds questions can be fairly challenging, although once you have practiced, should be straightforward.

Please do

– stop the video

– work through the question

– compare your solution

In the videos I’ve covered some examples of the usual questions, although you can download the rest of the worksheet & answers:

Download a copy of the question here: QT Bounds

Here’s a copy of the written answers: QT Bounds ANSWERS

I hope the videos help and please leave a comment – thanks!

These problems are part of the GCSE maths curriculum, and appear on all the main examination boards such as Edexcel, AQA, OCR and Eduqas.

**Top Tips!**

- Read the question thoroughly
- Work methodically
- Leave plenty of space for calculations 🙂

Here’s other posts that also might be of interest:

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Tangent proof; where a line touches a circle

GCSE Mathematics Proof Questions; Answers

How to work with indices; GCSE maths practice questions

Using the Cosine Rule; Grade 6 Maths GCSE Non-Calculator

The cosine rule; GCSE maths grade 6+

Parallel or perpendicular lines on a graph; mid-level questions

Edexcel GCSE Maths June 2018 Paper 1

Edexcel Maths Higher Paper 2 November 2018

AQA GCSE Maths Higher 2018; Paper 1

Edexcel GCSE Maths Foundation Paper 2017; Paper 3

Edexcel GCSE maths foundation November 2018 paper 2

Speed Distance Time; mid level GCSE mathematics questions

Please do leave a comment below if you are not sure. Alternately you can view my YouTube channel and leave a comment there – I’ll always try to respond as quickly as possible.

Watch on YouTube:

Bounds – Perimeter & Area of a Rectangle – Quick Video GCSE Maths Revision – Grade 7

Bounds – Speed Distance Time – Quick Video GCSE Maths Revision – Grade 7

Bounds vsquared = usquared + 2as – Quick Video GCSE Maths Revision – Grade 7

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