1 sf: Fluency & Practice
Mathematics
Year 9
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet designed to develop procedural mastery of rounding numbers to 1 significant figure, with increasing difficulty and real-world applications.
Worksheet Preview
Full preview • 12 questions
1 sf: Fluency & Practice
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.
Round 0.00456 to 1 significant figure.
[1 mark]2.
Round 987 to 1 significant figure.
[1 mark]3.
Round 1234.56 to 1 significant figure.
[1 mark]4.
Round 0.0789 to 1 significant figure.
[1 mark]5.
Estimate the value of 5,600,000 rounded to 1 significant figure.
[2 marks]6.
Calculate 3.14159 rounded to 1 significant figure.
[1 mark]7.
A scientist measures a sample as 0.000356. Round this to 1 significant figure.
[2 marks]8.
In a report, a value is given as 8.21×10^4. Round this to 1 significant figure.
[2 marks]9.
Estimate the total cost when each item costs $2.49, and 150 items are purchased, rounded to 1 significant figure.
[3 marks]10.
A car's speed is 123.45 km/h. Round this speed to 1 significant figure.
[1 mark]11.
Using the number 0.000789, round to 1 significant figure and explain your reasoning.
[3 marks]12.
Identify and correct the common mistake: Round 0.0567 to 1 significant figure assuming the first non-zero digit is 5.
[2 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet