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Cashier Change Challenge

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Worksheet

Cashier Change Challenge: How Much is Left?

Directions: Imagine you are a cashier! For each scenario, calculate the total cost, the change due, and show your work. Remember, the customer always gets the correct change!

Scenario 1: The Snack Attack!

Items Purchased:

  • Bag of Chips: $1.75
  • Soda: $2.25

Customer Pays With: A $5 bill

1. What is the total cost of the items?




2. How much change should you give the customer?




3. Show your work:







Scenario 2: School Supply Run

Items Purchased:

  • Notebook: $3.50
  • Pencils (pack): $1.25
  • Eraser: $0.75

Customer Pays With: A $10 bill

1. What is the total cost of the items?




2. How much change should you give the customer?




3. Show your work:







Scenario 3: Sweet Treat Stop

Items Purchased:

  • Chocolate Bar: $1.50
  • Gummy Candies: $1.10

Customer Pays With: A $20 bill

1. What is the total cost of the items?




2. How much change should you give the customer?




3. Show your work:







Scenario 4: The Art Project

Items Purchased:

  • Paint Set: $8.99
  • Brushes: $4.50
  • Canvas: $6.00

Customer Pays With: A $20 bill

1. What is the total cost of the items?




2. How much change should you give the customer?




3. Show your work:







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Answer Key

Cashier Change Challenge: How Much is Left? - Answer Key

Scenario 1: The Snack Attack!

Items Purchased:

  • Bag of Chips: $1.75
  • Soda: $2.25

Customer Pays With: A $5 bill

1. What is the total cost of the items?

  • $1.75 + $2.25 = $4.00

2. How much change should you give the customer?

  • $5.00 - $4.00 = $1.00

3. Show your work:

  • Add the cost of items: $1.75 + $2.25 = $4.00
  • Subtract the total cost from the amount paid: $5.00 - $4.00 = $1.00

Scenario 2: School Supply Run

Items Purchased:

  • Notebook: $3.50
  • Pencils (pack): $1.25
  • Eraser: $0.75

Customer Pays With: A $10 bill

1. What is the total cost of the items?

  • $3.50 + $1.25 + $0.75 = $5.50

2. How much change should you give the customer?

  • $10.00 - $5.50 = $4.50

3. Show your work:

  • Add the cost of items: $3.50 + $1.25 + $0.75 = $5.50
  • Subtract the total cost from the amount paid: $10.00 - $5.50 = $4.50

Scenario 3: Sweet Treat Stop

Items Purchased:

  • Chocolate Bar: $1.50
  • Gummy Candies: $1.10

Customer Pays With: A $20 bill

1. What is the total cost of the items?

  • $1.50 + $1.10 = $2.60

2. How much change should you give the customer?

  • $20.00 - $2.60 = $17.40

3. Show your work:

  • Add the cost of items: $1.50 + $1.10 = $2.60
  • Subtract the total cost from the amount paid: $20.00 - $2.60 = $17.40

Scenario 4: The Art Project

Items Purchased:

  • Paint Set: $8.99
  • Brushes: $4.50
  • Canvas: $6.00

Customer Pays With: A $20 bill

1. What is the total cost of the items?

  • $8.99 + $4.50 + $6.00 = $19.49

2. How much change should you give the customer?

  • $20.00 - $19.49 = $0.51

3. Show your work:

  • Add the cost of items: $8.99 + $4.50 + $6.00 = $19.49
  • Subtract the total cost from the amount paid: $20.00 - $19.49 = $0.51
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Lesson Plan

Cashier Change Challenge

Students will be able to accurately calculate total costs and the correct change due in various real-world purchasing scenarios, demonstrating proficiency in subtraction of decimals.

Mastering change calculation is a vital life skill. It empowers students to manage their money confidently, understand transactions, and avoid common errors when buying and selling, making them smart consumers and potential cashiers!

Audience

6th Grade Students

Time

30 minutes

Approach

Through guided practice and a fun worksheet, students will practice calculating totals and change.

Materials

Whiteboard or projector, Markers or pens, Cashier Change Challenge Worksheet, Cashier Change Challenge Answer Key, and Cashier Change Challenge Slide Deck

Prep

Teacher Preparation

10 minutes

Step 1

Introduction: Why Change Matters (5 minutes)

5 minutes

  • Begin by asking students: "Have you ever bought something and gotten change back? How do you know if it's the right amount?" (1 minute)
  • Explain that today, they'll become 'cashiers' and learn how to make sure customers always get the correct change. Emphasize the importance of this skill in everyday life. (1 minute)
  • Present the learning objective: "Today, we will learn to calculate total costs and the correct change when a customer pays for items." (1 minute)
  • Use the first few slides of the Cashier Change Challenge Slide Deck to set the stage and introduce the concept of total cost and change due. (2 minutes)

Step 2

Guided Practice: Let's Make Change! (10 minutes)

10 minutes

  • Display Slide 3 of the Cashier Change Challenge Slide Deck with a simple example scenario.
  • Walk through the example step-by-step with the class:
    • Identify the items and their prices.
    • Calculate the total cost (addition of decimals).
    • Identify the amount the customer pays.
    • Calculate the change due (subtraction of decimals).
  • Encourage student participation by asking questions like: "What operation should we use to find the total?" or "How can we find the change back?" (5 minutes)
  • Distribute the Cashier Change Challenge Worksheet. Explain that they will work through similar scenarios individually or in pairs. (5 minutes)

Step 3

Independent Practice: Cashier Challenge (10 minutes)

10 minutes

  • Students work on the Cashier Change Challenge Worksheet.
  • Circulate around the room, providing support, answering questions, and checking for understanding.
  • Remind students to show their work for each problem. (10 minutes)

Step 4

Review and Wrap-up (5 minutes)

5 minutes

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Slide Deck

Cashier Change Challenge

How much change should you get back?

Start with an engaging question to activate prior knowledge.

Our Goal Today

Accurately calculate total costs.

Give the correct change back to customers.

Become a 'Change Master'!

Introduce the objective of the lesson.

Let's Practice: Example 1

Items Purchased:

  • Candy Bar: $1.00
  • Juice Box: $1.50

Customer Pays With: A $5 bill

What is the total cost?

How much change is due?

Walk through a simple example step-by-step. Encourage student participation.

Example 1: Solution

Total Cost: $1.00 + $1.50 = $2.50

Change Due: $5.00 - $2.50 = $2.50

Good job, Cashiers!

Reveal the solution to the first example.

Your Turn! The Challenge Begins!

Work through the scenarios on your worksheet.

Calculate the total cost.

Calculate the change due.

Show your work!

(Refer to your Cashier Change Challenge Worksheet)

Explain that students will now try similar problems on their own or with a partner. Introduce the worksheet.

Reviewing the Challenge

Let's look at one of the scenarios from the worksheet together.

Which one caused you the most trouble?

After students have worked, review a challenging scenario or two from the worksheet. Use this slide to display a problem for discussion.

You're a Change Master!

You can now confidently:

  • Add up prices to find a total.
  • Subtract to find the correct change.
  • Be a super accurate cashier!

Great work, everyone!

Conclude by summarizing the key learning and reinforcing the importance of the skill.

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