Unit 5 : Review

Multi Digit Multiplication

100

 What is the product of 23 x 37? 

851

200

 What is the product of  321 x 9 ?

2889

300

James, a construction  worker works 12 hour shifts everyday. If he worked 22 days in a month, how many hours of work did he put in altogether?

264 Hours

400

A small dairy farm produces 87 gallons of milk in a day. How many gallons of milk will it produce in 15 days?

1305 Gallons of Milk

500

True or False 

When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and move the decimal that amount of times on the final number.

False! That's for multiplying!

Adding Decimals

100

3.14 + 5.12 = 

8.26

200

14.73+15.1=

29.83

300

3 + 4.55=

7.55

400

Jose and Michael  went to the store together.  Jose bought a video game for $32.77 and Michael bought a soccer ball for $12.45. How much did Jose  and Michael  spend together?

$45.22

500

Heidi buys two books, one poster, and one eraser at the school book fair. Each book costs $8.25. The poster cost $3.85 and the eraser cost $0.80.

1. What's the estimated money spent? 

2.  How much did Heidi spend?

1. Approximately $21

2. $21.15

Subtracting Decimals

100

1.23-1.11=

0.12

200

Clare bought a photo for 13 cents and paid with a $5 bill. How much change did she receive?

$4.87

300

2-0.345

1.655

400

Matthew went to the store and bought a sandwich for $4.70 cents. He paid with a ten dollar bill. How much money did he get back?

Matthew received $5.30 back. 

500

5.65-2.33=

3.32

Multiplying and Dividing Decimals

100

 5 x 0.6

3.0 or 3

200

Jesus  has 4 cats and  wants to buy each cat a new toy. The toy he  wants to buy each cat costs $5.25. How much will Jesus  spend if he buys all 4 of her cats this toy?

 Jesus will spend  $21.00 for all 4 toys.

300

0.07 x 0.2

0.014

400

0.12 x 0.3

0.036

500

1.7 X 5.1

8.67

Review Old Standards

100

Division of Fractions: 

5 divided by 1/5 

25 or 25/1

200

Division of Fractions: 

4/7 divided by 1/7

4 or 4/1

300

 Andres paid $96 for 6  tickets to see "No Way Home". Robert paid $68 for 4 tickets to see " No Way Home"  as well. Who made a better deal and why?

Hint: Unit Price- Long Division 

  

Andres paid $16 per ticket while Robert paid $17. Therefore Andres saved $1 per ticket. 

400

A. What is 50% of 7?

B. What is 25% of 24?

C. What is 10% of 20?

A. 3.5

B. 6

C. 2

500

David  bought 2 pairs of shoes for $166  while Damian bought 5 pairs of shoes for $400 at a different store.  Who made a better deal and why?

HINT: USE LONG DIVISION

Damian made a better deal as his unit price for one pair of shoes was $80 while David bought one pair for $83. Damian saved $8 than David.