Unit 3 Review

Exponents

100

What is 5^3. as repeated multiplication?

5x5x5

200

Write (1/4)⁵  as repeated multiplication.

1/4 x 1/4 x 1/4 x 1/4 x 1/4 

300

Solve 2⁶

2x2x2x2x2x2 =64

400

Solve (2/3)³

2/3 x 2/3 x 2/3 = 8/27

500

Compare the two powers: 

3⁴ and 4³

3⁴= 3x3x3x3

4³=4x4x4

3⁴ > 4³

GCF/LCM

100

What is the GCF of 12 and 15?

3

200

What is the LCM of 8 and 6?

24 

300

What is the GCF of 49 and 84? 

7 

400

What is the LCM of 15 and 45?

45

500

What is the GCF and LCM of 27 and 81? 

GCF: 27

LCM: 81

Numeric and Algebraic Expressions

100

Translate: 

6 times the sum of 4 and p

6(4+p)

200

Translate:

1/3 less than x times 5 

5x - 1/3 

300

Solve when a=4 and y=9

6a - y

6 (4) - 9

=15

400

Solve when a=10, b =5

2a +3b - 4 

2(10) + 3(5) - 4

=31

500

Solve when x=1/2 b=24

bx + x(8-6)

24 (1/2) +1/2 (8-6)

12+1/2 (2)

12 +1 

=13

Equivalent Expressions

100

Which of the following are equivalent? 

A. 3(4a+5z)

B.  34a +35z

C. 12a +15z

A and C

200

Write an Equivalent Expression to:

14x + 49

7 (2x +7)

300

Write an Equivalent Expression to:

4(x-3) 

4x-12

400

Write an equivalent expression to

20a - 4

4(5a-1)

500

Write an expression equivalent to 

20b - 30a + 60y - 40x

10 (2b - 3a + 6y - 4x)

Simplify Expressions

100

Simplify:

7n+14-3n

4n+14

200

Simplify

(12-4)y + 6y - 3

14y - 3

300

Simplify:

12a + 14n - 6 - 3a +26n 

9a + 40n - 6

400

Simplify: 

4n + 2² + 12 + 8n

12n +16 

500

Simplify:

2 ( x + 4) + 3 (x - 2) - 2y

2x + 8 + 3x - 6 - 2y

=5x + 2 - 2y