Single Variable: Real-world Applications in Shopping & Money
Mathematics
Year 9
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet exploring substitution with positive values through shopping and money-related problems, designed for Year 9 students.
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Single Variable: Real-world Applications in Shopping & Money
Subject: MathematicsGrade: Year 9
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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.
Calculate the total cost if each item costs $15 and you buy 4 items. Use substitution to find the total.
[2 marks]2.
A shirt costs $25. If a discount of 20% is applied, what is the new price? Use substitution to find the discounted price.
[2 marks]3.
You have $50 to spend on groceries. If apples cost $3 each, how many apples can you buy? Show your substitution calculation.
[2 marks]4.
In a shopping basket, the total weight is 5 kg. If each item weighs 0.5 kg, how many items are in the basket? Use substitution to find out.
[2 marks]5.
A customer has a $100 gift card. If they spend $23 on a book, how much money remains? Write the calculation with substitution.
[2 marks]6.
A pair of shoes costs $45. If there is a 15% discount, what is the discounted price? Use substitution to calculate.
[2 marks]7.
A customer wants to buy multiple items, each costing $12. If they spend exactly $96, how many items did they buy? Show your substitution work.
[2 marks]8.
Construct an expression to find the total price if buying n items at $8 each. Then calculate the total cost for 7 items.
[3 marks]9.
A store sells pens at $2 each. If a customer buys x pens, write an expression for the total cost. How much does 10 pens cost?
[2 marks]10.
A smartphone costs $600. After applying a $50 discount, what is the new price? Use substitution.
[2 marks]11.
A customer has $200. If they buy a jacket costing $120, how much money is left? Write the calculation with substitution.
[2 marks]12.
Error Analysis: A student calculates the discount on a $50 item as $10, claiming a 10% discount. Identify and correct the mistake.
[3 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet