Calculator Answers: Real-world Applications
Mathematics
Year 9
11 questions
~22 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on applying calculator answers and rounding to two decimal places within science experiment contexts. Designed to develop procedural skills and real-world problem solving.
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Full preview • 11 questions
Calculator Answers: Real-world Applications
Subject: MathematicsGrade: Year 9
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Untitled Worksheet
Grade Year 9
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the average of the measurements 12.345, 13.678, and 11.987 using a calculator. Round your answer to 2 decimal places.
[2 marks]2.
A scientist records a pH value of 7.4567. Round this value to 2 decimal places for reporting.
[2 marks]3.
Using a calculator, find the total volume of a solution if 0.5678 L, 1.2345 L, and 2.3456 L are mixed. Round your result to 2 decimal places.
[2 marks]4.
Calculate the difference between 25.678 and 19.234 using a calculator and round the answer to 2 decimal places.
[2 marks]5.
A temperature reading on a scientific instrument is 36.789°C. Round this to 2 decimal places for recording.
[2 marks]6.
The calculator shows a result of 123.456789. Round this to 2 decimal places for reporting.
[2 marks]7.
A student measures a liquid's density as 0.987654 g/cm³. Round this to 2 decimal places.
[2 marks]8.
A report states a sample's weight as 2.34567 grams. Round to 2 decimal places.
[2 marks]9.
Construct a scientific experiment scenario where the measurement results are 45.6789, 46.1234, and 45.9876. Calculate their average rounded to 2 decimal places.
[3 marks]10.
A measurement of 0.456789 is recorded. When rounded to 2 decimal places, what is the result? Explain why if students incorrectly round to 0.45 instead of 0.46.
[3 marks]11.
A scientist records a value of 123.4567. They mistakenly round it to 123.45. Identify the mistake and correct the rounding to 2 decimal places.
[3 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet