Unit 2 Review

PEMDAS 1

100

Evaluate:

5 - 1 x 4 + 3 

 4

200

Evaluate:

18 ÷ 6 × (4 - 3) + 6 

9

300

Evaluate:

64 ÷ 8 + 30 - 15 ÷ 3

33

400

Evaluate:

8 ÷ (10 − 9) + 3 × 7 + 4 

33

500

Evaluate:

3(8 - 5) − (9 − 7) ÷ 2

8

PEMDAS 2

100

6 - 9 x 2

-12

200

Evaluate:

5 x (7 - 2) + (8 - 1)

32

300

Evaluate

24 ÷ 8 × (5 - 3) + 9²

87

400

4 x (9 - 2 + 3) ÷ 4 + 7

17

500

Evaluate:

4 × (15 − 10)+ 10 ÷ 5 + (-3)²

31

PEMDAS 3

100

4 + 3 x 8

28

200

Evaluate:

(19 - 7) ÷ 4 + 11

14

300

Evaluate:

9 + 4 × 16 ÷ 4 - 7 

18

400

Evaluate:

(62 + 4 ) ÷ 6 − 2 × 3 ÷ 2  

8

500

Evaluate:

10² + 8 − 6  + ( 6 x 1)²

 138

Exponents!!

100

3² + (-5)²

34

200

-6² + 10²

64

300

 7² - 8²

-15

400

-3² + (-3)²

0

500

11² - 2² + 6² - 4² 

137

Rational??

100

Why is this number rational?

5 

It can be written as a fraction: 5/1

200

Why is this number rational?

0.3

The decimal terminates (ends)

300

Why is this number rational?

0.454545...

The decimal repeats

400

Why is this number irrational?

square root of 99

Non-repeating, non-terminating 

or square root of a non-perfect square

500

Why is this number irrational?

pi

The decimal does not terminate and does not repeat