1. 1) Write an expression to represent the model below. 0.10 or 0.1 0.20 or 0.2 0.30 or 0.3 0.40 or 0.4 0.50 or 0.5 0.60 or 0.6 0.70 or 0.7 0.80 or 0.8 0.90 or 0.9 0.10 or 0.10.20 or 0.20.30 or 0.30.40 or 0.40.50 or 0.50.60 or 0.60.70 or 0.70.80 or 0.80.90 or 0.9 0.9 × 0.9

2. 2) Write an expression to represent the model below. 0.50 or 0.5 0.80 or 0.8 0.5 × 0.8

3. 3) Write an equation to represent the model below. 0.60 or 0.6 0.20 or 0.2 0.6 × 0.2 = 0.12

4. 4) Write an equation to represent the model below. 0.30 or 0.3 0.60 or 0.6 0.3 × 0.6 = 0.18

5. 5) Paul saved money for one year to buy a game system. He saved $19.25 each month. Which of the following can be used to find the amount of money Paul saved? 10 + 9 + 0.20 + 0.05 × 2 0.10 2 × 0.05 0.40 2 × 0.20 18.00 2 × 9 20.00 2 × 10 38.50 192.50 + 38.50 = $231 10 + 9 + 0.20 + 0.05 × 10 0.50 10 × 0.05 2.00 10 × 0.20 90.00 10 × 9 100.00 10 × 10 192.50 10 + 9 + 0.20 + 0.50 × 2 1.00 2 × 0.50 0.40 2 × 0.20 18.00 2 × 9 20.00 2 × 10 39.40 197.50 + 39.40 = $236.90 10 + 9 + 0.20 + 0.50 × 10 5.00 10 × 0.50 2.00 10 × 0.20 90.00 10 × 9 100.00 10 × 10 197.50 A B

6. 6) Paul saved money for two years to buy a game system. He saved $15.50 each month. Write an expanded form model (as demonstrated in question 5) to find the amount of money Paul saved. 10 + 5 + 0.50 × 4 2.00 4 × 0.50 20.00 4 × 5 40.00 4 × 10 62.00 310.00 + 62.00 = $372.00 10 + 5 + 0.50 × 20 10.0020 × 0.50 100.0020 × 5 200.0020 × 10 310.00

7. 7) Simplify the following expression. 52.5 ÷ 7 + 29 – 0.5 3 × 2 × 3 7.5 + 29 – 0.5 3 × 2 × 3 36.5 – 0.5 3 × 2 × 3 36 3 × 2 × 3 36 18 = 2

8. 8) Simplify the following expression. 36.5 ÷ 2 + 6 – 0.25 2 × 2 × 3 18.25 + 6 – 0.25 2 × 2 × 3 24.25 – 0.25 2 × 2 × 3 24 2 × 2 × 3 24 12 = 2

9. 9) Annie and 3 friends shared a pizza that cost $5.40. If each person paid an equal amount, which quick picture shows the amount each person paid? 5.40 ÷ 4 = $1.35 1.15 1.16 2.15 1.35

10. 10) Annie and 4 friends shared a pizza that cost $10.75. If each person paid an equal amount, which quick picture shows the amount each person paid? 10.75 ÷ 5 = $2.15

11. 11) Desi has a length of rope that is 7.16 meters long. He cuts the rope into 4 equal pieces. How long is each piece of rope? 7.16 ÷ 4 = 1.79 1.00 0.70 0.09

12. 12) Desi has a length of rope that is 6.6 meters long. He cuts the rope into 4 equal pieces. How long is each piece of rope? 6.6 ÷ 4 = 1.65 1.000.60 0.05