Using Money

1
Using Money

• It takes dollars and cents to buy the things we
  need.

2
Money
3
At the bookstore

• Item Cost
  
• Pencil
  0.15
• Eraser
  0.10
• Notepad
  0.50
• Ruler
  0.25
• Crayons
  0.35
• Lollipop
  0.05

4
What can you buy?

• You have 1.00
• You need
• Notepad 0.50
• Crayons 0.35
• 0.85
• 1.00
• - 0.85 How many lollipops
• 0.15 Change can you buy?

5
What else can you buy?

• You have 1.00
• You need
• Pencil 0.15
• Ruler 0.25
• 0.40
• 1.00
• - 0.40
• 0.60 Change

6
You need more . .

• Notepad 0.50
• Eraser 0.10
• Pencil 0.15
• 0.75
• You have 1.00
• - 0.75
• Change 0.25

Can you buy a ruler?
7
Ms. Hausman says I need crayons.

• I have
  1.00
• 
  0.35
• 
  0.35
• 
  0.70
• Can I buy
  more
• 
  crayons?

8
Now I have 2.00.

• Can I buy
• 1 ruler 0.25
• 2 pencils 0.15 0.15 0.30
• 2 erasers 0.10 0.10 0.20
• 2 notepads 0.50 0.50 1.00
• Total 1.75
• Can I buy crayons?
• 0.35

9
I need notepads for 5 students. How much money do
I need?

• 5 x 0.50
• 0.50
• 0.50
• 0.50
• 0.50
• 0.50
• 2.50

Can you count by fives?
Can you count by fives?
10
I need pencils for the class. There are 10
students.1 Pencil 0.1510 x 0.15
How much money do I need?
1.50
11
My friend needs things too.

• Eraser
  0.10
• 2 Pencils 0.15 0.15
  0.30
• Notepad
  0.50
• 
  0.90
• I need pencils too. 0.150.15 0.30
• Total
  1.20
• I have 3.00 3.00 - 1.20 1.80
  

12

• What
• if I only want to buy
• lollipops?

13
I have 1.15How many lollipops can I buy?

• Each lollipop costs 0.05
• How many times
• does 0.05 go into 1.15?
• Answer 23 times
• Is that enough lollipops
• for the whole class?