×100: Real-world Applications
Mathematics
Year 9
16 questions
~32 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on converting decimals to percentages by multiplying by 100, with real-world context and problem-solving exercises for Year 9 students.
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×100: Real-world Applications
Subject: MathematicsGrade: Year 9
Name:
Date:
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Untitled Worksheet
Grade Year 9
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Convert the decimal 0.45 to a percentage.
[2 marks]2.
What is 0.067 expressed as a percentage?
[2 marks]3.
Express 0.123 as a percentage.
[2 marks]4.
Calculate 0.005 multiplied by 100.
[3 marks]B
Fluency & Practice
Convert the following decimals to percentages by multiplying by 100.
1.
Convert 0.8 to a percentage.
[2 marks]2.
Express 0.009 as a percentage.
[2 marks]3.
Convert 0.333 to a percentage.
[2 marks]C
Problem Solving & Reasoning
Solve the following multi-step problems involving decimal to percentage conversion.
1.
A bottle contains 0.275 litres of juice. What percentage of 1 litre is this?
[3 marks]2.
A student scores 0.92 on a test. What percentage is this score?
[3 marks]D
Real-world Applications
Apply your understanding to these real-world context questions.
1.
A jacket is reduced by 0.15 of its original price during a sale. If the original price was $80, what is the discount in percentage?
[3 marks]2.
A survey shows that 0.055 of people prefer a certain brand. Express this as a percentage.
[2 marks]E
Challenge & Extension
Tackle these more difficult problems involving multiplying decimals by 100.
1.
A scientist measures a substance as 0.00045 grams. What is this mass in percentage form?
[3 marks]2.
If a machine’s efficiency is 0.998, what is its efficiency percentage?
[3 marks]F
Mixed Review
Answer these questions covering a range of skills involving ×100.
1.
Convert 0.0056 to a percentage.
[2 marks]2.
Express 0.2 as a percentage.
[2 marks]G
Error Analysis
Identify and correct the mistakes in these incorrect conversions.
1.
A student converts 0.75 to 750%. What is the mistake? Correct the conversion.
[3 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