Whole Numbers: Mixed Review on Upper and Lower Bounds
Mathematics
GCSE Higher
12 questions
~24 mins
1 views0 downloads
About This Worksheet
This worksheet reviews the concept of upper and lower bounds for whole numbers, including procedural skills, problem solving, and real-world applications.
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Whole Numbers: Mixed Review on Upper and Lower Bounds
Subject: MathematicsGrade: GCSE Higher
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Untitled Worksheet
Grade GCSE Higher
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the lower bound of 47.6 when rounded to the nearest whole number.
[2 marks]2.
Determine the upper bound of 89.49 when rounded to two decimal places.
[2 marks]3.
A quantity of 123 grams is measured with an instrument that has an error of ±0.5 grams. What is the lower bound of the true weight?
[3 marks]4.
Calculate the upper bound of the number 6.789 when rounded to three decimal places.
[2 marks]5.
A car's speed is recorded as 55 km/h with an uncertainty of ±1 km/h. What is the lower bound of the true speed?
[3 marks]6.
Plot the graph of y=2x for x from 0 to 10 on the grid.
[2 marks]7.
Construct a triangle on the grid with sides measuring 4, 5, and 6 units. Show your construction steps.
[4 marks]8.
A box contains 150 whole apples. If 2% of the apples are rotten, estimate the minimum number of good apples, considering upper bounds.
[3 marks]9.
If the measurement of a liquid is 250 mL with an error of ±0.5 mL, what are the upper and lower bounds of the actual volume?
[3 marks]10.
A student's score is 87, with an error margin of ±2 marks. What are the possible true scores?
[2 marks]11.
Identify and correct the mistake: 'Rounding 3.14159 to 3 decimal places gives 3.141, so the upper bound should be 3.142.'
[3 marks]12.
A factory produces 999 items daily. If the production count is rounded to the nearest hundred, what is the lower and upper bounds of the actual number of items produced?
[3 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet