1 sf: Mixed Review
Mathematics
Grade 8
17 questions
~34 mins
1 views0 downloads
About This Worksheet
A worksheet covering Rounding to 1 Significant Figure for Grade 8 students, including procedures, real-world applications, and challenge questions.
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Full preview • 17 questions
1 sf: Mixed Review
Subject: MathematicsGrade: Grade 8
Name:
Date:
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Untitled Worksheet
Grade Grade 8
A
Fluency & Practice
Answer all questions. Show your working in the grid spaces provided.
1.
Round 0.00489 to 1 significant figure.
[2 marks]2.
Round 4567 to 1 significant figure.
[2 marks]3.
Round 78.92 to 1 significant figure.
[2 marks]4.
Round 12345 to 1 significant figure.
[2 marks]B
Practice & Application
Answer all questions. Show your working in the grid spaces provided.
1.
Estimate the length of a football field as approximately 109.7 meters. Round to 1 significant figure.
[2 marks]2.
A scientific measurement gives 0.0006789 grams. Round to 1 significant figure.
[2 marks]3.
The population of a city is approximately 3,456,789. Round to 1 significant figure.
[2 marks]4.
A car travels approximately 123.4 km in a day. Round to 1 significant figure.
[2 marks]5.
Calculate 9345 rounded to 1 significant figure.
[3 marks]C
Problem Solving & Reasoning
Answer all questions. Show your working in the grid spaces provided.
1.
A scientist measures the diameter of a cell as 0.0004782 meters. What is this value rounded to 1 significant figure? Explain your reasoning.
[4 marks]2.
A building’s height is approximately 256.7 meters. Round to 1 significant figure. Why is this approximation useful in planning?
[4 marks]D
Real-world Applications
Answer all questions. Show your working in the grid spaces provided.
1.
A manufacturer produces 1,234,567 units annually. Round this figure to 1 significant figure for reporting purposes.
[2 marks]2.
A large water tank holds approximately 987.6 liters. Round to 1 significant figure for estimation.
[2 marks]E
Challenge & Extension
Answer all questions. Show your working in the grid spaces provided.
1.
The value of pi is approximately 3.14159. Round it to 1 significant figure.
[3 marks]2.
Estimate the total cost if a product costs $57.89 each, and you buy 10 units. Round each to 1 significant figure before multiplication and explain your approach.
[4 marks]F
Error Analysis & Reflection
Review the following errors. Identify and correct the mistakes.
1.
A student rounds 0.009876 to 1 sf as 0.009. Is this correct? If not, what is the correct rounding?
[2 marks]2.
A student states that 56789 rounded to 1 sf is 60000. Is this correct? If not, what should it be?
[2 marks]Quick Actions
What is Remix?
Create a new worksheet based on this one. Change the grade level, topic, number of questions, or difficulty - then generate a fresh version.
- • Change grade level (Grade 6 → Grade 7)
- • Swap topics (Harry Potter → Macbeth)
- • Add more questions (10 → 15)
- • Adjust difficulty
Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet