**Warmup**

**Activity #1**

At the beginning of the month Kiran had $24 in his school cafeteria account.

**Representing a Transaction on a Number Line.**

In the first week he spent $16 on lunch.

(1.) How much was in his account then?

(2.) Use a variable to represent the unknown quantity and write an equation to represent it.

(3.) What is the unknown quantity?

- Represent the transaction on the number line below.

Then Kiran deposited some more money and his account balance was $28.

(4.) How much did he deposit?

(5.) Use a variable to represent the unknown quantity and write an equation to represent it.

(6.) What is the unknown quantity?

- Represent the transaction on the number line below.

Then he spent $34 on lunch the next week.

(7.) How much was in his account then?

(8.) Use a variable to represent the unknown quantity and write an equation to represent it.

(9.) What is the unknown quantity?

- Represent the transaction on the number line below.

Then he deposited enough money to pay off his debt to the cafeteria.

(10.) How much did he deposit?

(11.) Use a variable to represent the unknown quantity and write an equation to represent it.

- Represent the transaction on the number line below.

(12.) Explain why it makes sense to use a negative number to represent Kiran’s account balance when he owes money.

**Activity #2**

**Solving Money Problems using Linear Equations.**

- Solve as many problems as you can using the applet below.

**Activity #3**

** Money Game.**

- Interact with the applet below to test your skills in buying items from a store.

**Challenge #1**

(1.) If we put withdrawals and deposits in the same column, how can they be represented?

(2.) Andre withdraws $40 to buy a music player. What is his new balance?

(3.) If Andre deposits $100 in this account, will he still be in debt? How do you know?

**Challenge #2**

The table shows five transactions and the resulting account balance in a bank account, except some numbers are missing. Fill in the missing numbers.

**Challenge #3**

**Quiz Time**

https://www.ixl.com/math/grade-5/add-subtract-multiply-and-divide-decimals-word-problems

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