Course 2 Operations with Rational Numbers

Add and Subtract

100

3 1/2 + 4 1/5

7 7/10

200

- 3 5/6 - 2 1/2

- 6 1/3

300

- 2 1/3 + 8 1/2

6 1/6

400

4 4/5 - 8 1/3

- 3 8/15

Multiply and Divide

100

4/5 xx 9/10

18/25

200

- 5/6 div - 2/3

1 1/4

300

2 7/9 xx 3 2/5

9 4/9

400

- 1. bar 4 div 2/3

- 2 1/6

With a Calc!

100

Evaluate  x^2 - zy if x = -4, 

z = 8 and y = -9

88

200

Evaluate:

- 1.8 xx 2 2/3 + 1.bar6 div 2

- 3 29/30

300

A rectangle has a length of  3 2/5 and a width of 6.4 feet. What is the perimeter of the rectangle?

19.6 or 

19 3/5

400

A triangle has a base of  4 3/10 ft. and a height of 6.82 ft.  What is its area? Write your answer as a decimal

14.663

Mystery Box!

100

Name one irrational number

pi

200

(-4)(-5)(9)

180

300

Put in order from least to greatest:

-4/9, 0, - 0.bar45, - 7/18

-0.bar45, -4/9, - 7/18, 0

400

84 is what percent of 60?

140%