Unit 5 Rational Numbers project

Subtraction

100

10-4

6

200

5/6 - 1/4

7/12

300

-12 - (-5)

-7

400

71/3 −2 2/3

4 2/3

500

11/12 − 7/18 − 1/9

7/36

Addition

100

3+2 

5 

200

2/3 + 1/6

5/6

300

-4 + 7

3

400

2 1/4 + 3 1/2

5 3/4

500

−3/8 + 5/12 + 1

1 7/24

Multiplication

100

9 x 6

54

200

3/4 x 2/3

1/2

300

-3 x 2

-6

400

2 1/2×3/5

1 1/2

500

7/9 × 15/28 × (−2)

5/6

Division

100

8 ÷ 2

4

200

6 ÷ 1/2

12

300

5/6÷1/3

5/2 

400

-9 ÷ 3

-3

500

(−3/4)÷(5/12)

- 1 4/5

Real World Problems

100

You buy a sandwich for $4 and a drink for $2.

6

200

A rope is 15 feet long. You cut off 4 feet.

11

300

A car travels 150 miles on 5 gallons of gas.

30

400

A recipe uses 34 cup of flour per batch. You make 4 batches.

3

500

A tank holds 40 gallons of water. It is currently 25 full. You drain 8 gallons, then refill the tank at 3 gallons per minute for 5 minutes.

How many gallons of water are in the tank now?

23