Expressions Review

Exponents

100

What is the solution to 2^4?

16

200

How is this expressions written as an exponent?

3 x 3 x 3 x 3

3⁴

300

What is the solution to 4³?

64

400

Which has a value of 16?

a. 8²

b. 4²

c. 2⁸

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B. 4²= 4 x 4 which equals 16.

500

What is the value of 10⁵?

100,000

Order of Operations

100

Which operation would come first?

9 x 4(3+7) - 8²

Parenthesis, (3+7)

200

What is the solution to the following equation?

9(15 - 4)

99

300

What is the solution to the following equation?

2⁴ - 15 + (12² - 4)

141

400

What is the solution to the following equation?

7 x 8 - 5 + 3 x 2²

63

500

Find the mistake.

(5 + 3²) +18

 (5+6) + 18

   11 + 18

       29

3² is 9, not 6.

Evaluate Expressions

100

How many terms does this expression have?

4x + 3y - 7

3: 4x, 3y, 7

200

Which number or symbol is the coefficient?

8 + 9x

9

300

Evaluate the expression if x=8 and y=11

4x - 2y

4(8)- 2(11)

   32 - 22

      10

400

Evaluate the expression if x=2, y=5, z=3

8 - 2z + 3(x + y)

8 - 2(3) + 3 (2 + 5)

      8 - 6 + 3(7)

       8 - 6 + 21

          2 + 21

            23

500

Evaluate the perimeter of a rectangle when l=15 and w=6. Use the formula 2l + 2w.

2(15) + 2(6)

  30 + 12

      42

Properties of Operation

100

What is the commutative property of 

                      a + b

b + a

200

Which is an example of associative property of multiplication?

A. (2 + 6) + 5 = 2 + (6 + 5)

B. 2 +6 +5 = 6 + 2 + 5

C. (2 x 6) x 5 = 2 x (6 x 5)

C. (2 x 6) x 5 = 2 x (6 x 5)

300

Adding 0 or Multiplying by 1 is known as which property of operation?

A. Commutative Property

B. Associative Property

C. Identity Property

D. Inverse Property

Identity Property

400

What is an equivalent expression, using the inverse property?

14 + b = 0

14 + (-14) = 0

500

Which property is being used?

15 x 1

Multiplication Identity

Miscellaneous

100

Which example does NOT represent    3^{2 +} 4⁴

A. 9 + 256

B. 3 x 3 x 4 x 4 x 4 x 4 

C. 7⁶

D. 2304

C. 7⁶

200

Simplify the expression   18 + 6 x 2²

18 + 6 x 2²

18 + 6 x 4

  18 + 24

      42 

300

What is the second step to solve this expression?

17 x 6² + (4 x 5)

Exponent, 6²

400

Name all parts of the expression   7x + 5y + 3

Terms:

Variables:

Coefficients:

Constants:

Terms: 3 (7x, 5y, 3)

Variables: x, y

Coefficients: 7, 5

Constants: 3

500

The screen of a tablet is shaped like a rectangle. Find the area of the screen by evaluating A=lw, when the l=7 and w=11.

A= 7 x 11

A= 77