Shopping Subtraction Ultimate

Name:

Date:

🛒 Part 1: Multi-Step Shopping Problems

WALT: Use subtraction strategies to solve complex shopping problems and check our answers using estimation.

Success Criteria: I can solve multi-step problems, calculate change and discounts, and explain my thinking clearly.

1. Sarah has $85.00 to spend at the shopping centre. She buys a jumper for $34.50, shoes for $29.75, and lunch for $12.25. How much money does she have left?

Answer: $ ____________

2. The electronics store is having a sale. A tablet costs $240.00 but has a discount of $65.00. If Jake pays with $200.00, how much more money does he need?

Answer: $ ____________

3. Mum gives you $50.00 for groceries. You buy items worth $18.40, $7.95, and $16.30. Round your total spending to the nearest dollar to estimate, then calculate the exact change.

Estimated change: $ ____________

Exact change: $ ____________

4. At the bookstore, Emma bought 3 books for $14.95 each and received $22.15 change. How much money did she give the cashier?

Answer: $ ____________

🧮 Part 2: Problem Solving & Reasoning

5. Choose the best strategy for checking your answer to Question 1:

Add all the purchases to the change and see if it equals $85.00

Subtract $85.00 from the total purchases

Round all numbers to the nearest $10 and estimate

6. Tom has $75.00. After shopping, he has $23.50 left. If one of his purchases was a game for $28.00, what did his other purchases cost altogether?

Answer: $ ____________

7. Explain how you would check if your answer to Question 6 is reasonable using estimation:

🌟 Part 3: Create Your Own Challenge

8. Create a shopping problem that involves at least 3 items and requires finding the change from $100.00. Make sure your problem has multiple steps!

9. Now solve your own problem and show your working:

Answer: $ ____________

Extension Challenge: Create a problem involving a discount percentage (e.g., 20% off) and solve it. Show how you would estimate first, then calculate exactly.