Adding and Subtracting Decimals Prime and Composite Numbers Rounding Multiplication of Decimal Models Division Created by Educational Technology Network. www.edtechnetwork.com 2009

Rounding 10 20 30 40 50 Adding and Subtracting Decimals Division Multiplication of Decimals Models Prime and Composite Numbers Division 10 20 30 40 50

Question 1 - 10 Gavyn bought a flying drone that had a regular price of $299.89. Gavyn had a coupon for $45.75 to be used at the store. Gavyn also picked up an extra battery pack for $19.99. What was the total amount he spent?

Answer 1 – 10 274.13

Question 1 - 20 Rick ran a lemonade stand for two days. He borrowed $5.38 from his dad to buy supplies On the first day he collected $4.75 in lemonade sales. On the second day he collected $7.25 in lemonade sales. What was Rick’s profit after paying back his dad?

Answer 1 – 20 $6.62

Question 1 - 30 Last month Jim drove his car 2718.3 miles. That brought the car’s total mileage to 87,416 miles. What was the car’s total mileage before last month?

Answer 1 – 30 84,697.7

Question 1 - 40 Britt bought supplies for the first day of school. He bought a notebook for $4.98, a box of pencils for $0.97, a package of paper for $0.39, and a package of pens for $2.79. Britt gave the cashier $20. How much change did he receive?

Answer 1 – 40 $10.87

Question 1 - 50 Midway Race Times Athlete Race 1 Race 2 Race 3 Dan 14.85 min 13.007 min 15.987 min Sara 13.087 min 12.345 min 12.09 min Louise 14.88 min 13.017 min 13.999 min Which is statement is true about the data in the table? The total time it took all three athletes to run Race 1 is 42.818 minutes Dan completed Race 2 0.010 minutes slower than Louise Sara finished Race 3 about 4 minutes faster than Dan Louise seems to be the fastest runner at Midway

C. Sara completed Race 3 about 4 minutes faster than Dan Answer 1 – 50 C. Sara completed Race 3 about 4 minutes faster than Dan

Question 2 - 10 Natalie’s parents are planning a trip. They create this chart showing the average gasoline prices. Which shows the price of the mid-grade rounded to the nearest hundredth? $3.50 $3.53 $3.52 $3.60 Regular Mid-Grade Premium $3.387 $3.529 $3.663

Answer 2 – 10 $3.53

Question 2 - 20 What number does not round to 6.8 when rounded to the tenths place? 6.756 6.747 6.78 6.777

Answer 2 – 20 6.747

Question 2 - 30

Answer 2 – 30

Question 2 - 40

Answer 2 – 40

Question 2 - 50

Answer 2 – 50

Question 3 - 10 Write the equation and solve. Find the model that matches.

Answer 3 – 10

Question 3 - 20 Write the equation and then solve to find the answer.

Answer 3 – 20

Question 3 - 30

Answer 3 – 30

Question 3 - 40 What is the product?

Answer 3 – 40

Question 3 - 50 Write an equation for the multiplication of decimals model below and solve:

Answer 3 – 50 0.8 x 5 = 4.0 or 4

Question 4 - 10

Answer 4 – 10

Question 4 - 20

Answer 4 – 20

Question 4 - 30

Answer 4 – 30

Question 4 - 40

Answer 4 – 40

Question 4 - 50

Answer 4 – 50

Question 5 - 10

Answer 5 – 10 56

Question 5 - 20

Answer 5 – 20 58,C

Question 5 - 30

Answer 5 – 30 115, C

Question 5 - 40

209 days, with 3 sheets of paper left Answer 5 – 40 209 days, with 3 sheets of paper left

Question 5 - 50

Answer 5 – 50 $52