Free Printable UNIT 13 VOCAB & REVIEW

1.

(VOCAB) A (a) is a letter that represents a number. The value used to replace the letter can vary.

2.

(VOCAB) ______ __ __________ tells us the order of performing computations is to first work within grouping symbols (parenthesis). Then, simplify terms with exponents. Next, while reading left to right, perform multiplication AND division. Finally, left to right, perform addition and subtraction.

(a)

3.

(VOCAB) Expressions are (a) if they have the same value, no matter what number is substituted in for each of the variables.

4.

(VOCAB) Changing the grouping of numbers (parenthesis) doesn't affect the sum.

(a + b) + c = a + (b + c)

or the product of an expression.

(a x b) x c = a x (b x c)

(a)

5.

(VOCAB) An _________ __________ is a mathematical statement containing numbers, operators, and at least one unknown, represented by a variable.

(a)

6.

(VOCAB) A ____ is a single number or variable, or numbers and variables multiplied together. For example, the expression 5 - 4y has two ____s.

(a)

7.

(VOCAB) An (a) is a mathematical statement containing numerals, operators, grouping symbols, and symbols or variables for unknown values. It does not contain an equal sign or an inequality symbol (< or > or =)

8.

(VOCAB) A __________ is the number or constant that multiplies a variable in an algebraic expression. If no number is specified, it is 1. For example, in the expression -8y, the __________ is -8.

(a)

9.

(VOCAB) ____ _____ are terms with the exact same variable(s) raised to the same exponent.

Example: 5x and -3x are ____ _____.

(a)

10.

(VOCAB) A ________ is a fixed numerical value with no variables. All constants are like terms. For example, in the expression 6t + 9, the ________ is 9.

(a)

11.

b² + 4
when b = 3

a)

10

b)

12

c)

13

d)

11

12.

Evaluate 7c - 3 when c = 4

(a)

13.

$n^2-6+3$ when n = 5

(a)

14.

Evaluate the following expression when x = 4:

x²+ 2x + 3

a)

17

b)

27

c)

19

d)

25

15.

Evaluate 7y - 3y for y=2

a)

40

b)

73

c)

8

d)

4

16.

a²- b²Evaluate if a=4 and b =2

a)

4

b)

20

c)

-4

d)

12

17.

Evaluate if a = 2 and b = 8
6 + 7b - 3a

a)

-100

b)

100

c)

-56

d)

56

18.

What is 4x if x=5?

a)

20

b)

16

c)

9

d)

45

19.

Evaluate the expression when x = 3.
2x² - 5

a)

31

b)

12

c)

7

d)

13

20.

8y + 12 - 2z
for y = 4 and z = 2

a)

40

b)

20

c)

84

d)

34

21.

a)

79

b)

83

c)

34

d)

64

22.

a)

6

b)

49

c)

5

d)

54

23.

Evaluate:

$bc-5a$ when $a=3,\ \ b=4,\ \ and\ \ c=6$

a)

31

b)

9

c)

2

d)

39

24.

Which is an example of a variable in the following equation?
9g + 3 = 60

a)

9

b)

g

c)

3

d)

60

25.

2f + f

a)

3f

b)

2f

c)

f

26.

Simplify the expression: 2x + 1 + 7x

a)

10x

b)

10

c)

9x + 1

d)

9 + 1x

27.

Simplify the expression: 7v + 2 + 12 + 2v

a)

23

b)

23v

c)

9 + 14v

d)

9v + 14

28.

5x + 3y + 5 + 4x + 3y + y + 8

a)

9x + 7y + 13

b)

6x + 2y + 2

c)

25x + 2y + 3

d)

x + 7y + 12

29.

2(4 + 9w)

a)

8+9w

b)

2+9

c)

8+18w

d)

2+9w

30.

5(2x + 3)

a)

10x + 3

b)

10x + 15

c)

25x

d)

7x + 8

31.

10( b + 3)

a)

10b + 30

b)

30b

c)

10b + 3

d)

10b - 3

32.

Collect like terms:
4y + 8d - 2y + 3d

a)

11d + 6y

b)

11d + 2y

c)

6y + 5d

33.

Simplify: 20n + 4 + 5 + 7n

a)

36n

b)

24n + 2n

c)

27n + 9

d)

24n + 12

34.

y + 5x - 10

a)

coefficient

b)

terms

c)

variables

d)

constant

35.

3y + 5

a)

term

b)

variable

c)

coefficient

d)

constant

36.

2x + 3y + 5x = 75

a)

coefficeient

b)

constant

c)

terms

d)

variables

37.

Choose the property: (xy)z = x(yz)

a)

Assosciative

b)

Commutative

c)

Distributive

d)

Identity

e)

Inverse

38.

Choose the property: 3 • (4 • 5) = (3 • 4) • 5

a)

Assosciative

b)

Commutative

c)

Distributive

d)

Identity

e)

Inverse

39.

Choose the property: m + n = n + m

a)

Assosciative

b)

Commutative

c)

Distributive

d)

Identity

e)

Inverse

40.

Choose the property: 9 • 5 = 5 • 9

a)

Assosciative

b)

Commutative

c)

Distributive

d)

Identity

e)

Inverse

41.

Choose the property: xy + xz = x(y + z)

a)

Assosciative

b)

Commutative

c)

Distributive

d)

Identity

e)

Inverse

42.

Choose the property: -2(2m + 3) = -4m - 6

a)

Assosciative

b)

Commutative

c)

Distributive

d)

Identity

e)

Inverse

43.

Identify the property shown.

a)

Commutative Property of Multiplication

b)

Associative Property of Multiplication

c)

Distributive Property

d)

Multiplication Property of 1

44.

Find an equivalent expression using the associative property:
7 + ( 8 + 9)

a)

7 + 8 + 9

b)

8 + ( 7 + 9)

c)

(7 + 8 ) + 9

d)

7 + 10

45.

This property tells us that when we change the order of numbers when we are adding, the answer does not change.

a)

Commutative Addition

b)

Commutative Multiplication

c)

Associative Addition

d)

Associative Multiplication

46.

Which is an example of Commutative Property of Addition?

a)

7 + (6+3) = 7 + (3+6)

b)

3x4 = 4x3

c)

7 + 3 = 13 + 7

d)

2 + (3 + 4) = (2 + 3) +4

47.

Identify the property shown.

a)

Associative Property of Addition

b)

Commutative Property of Addition

c)

Distributive Property

d)

Multiplication Property of 1

48.

Identify the property shown.

a)

Associative Property of Addition

b)

Commutative Property of Addition

c)

Distributive Property

d)

Addition Property of 0

49.

Identify the property shown.

a)

Associative Property of Multiplication

b)

Commutative Property of Multiplication

c)

Distributive Property

d)

Multiplication Property of 1

50.

Identify the property shown.

a)

Commutative Property of Addition

b)

Associative Property of Addition

c)

Distributive Property

d)

Addition Property of 0

51.

Identify the property shown.

a)

Associative Property of Addition

b)

Commutative Property of Addition

c)

Distributive Property

d)

Multiplication Property of 1

52.

Identify the property shown.

a)

Commutative Property of Multiplication

b)

Commutative Property of Addition

c)

Associative Property of Multiplication

d)

Multiplication Property of 5

53.

The sum of seven and x

a)

7-x

b)

x-7

c)

7x

d)

7+x

54.

Twenty decreased by x

a)

20+x

b)

20/x

c)

x-20

d)

20-x

55.

the quotient of a number and 9

a)

n + 9

b)

n - 9

c)

9n

d)

n/9

56.

The product of five and w

a)

5+w

b)

5w

c)

w-5

d)

5-w

57.

What is the coefficient of the following expression?
7c + 8

a)

c

b)

7

c)

8

d)

1

58.

Which expression represents: "the product of 3 and x increased by 5"?

a)

5x - 3

b)

3 - 5x

c)

3x + 5

d)

3x(5)

59.

Nate has 6 fewer CDs than Emily. If c represents the number of CDs Emily has, which expression tells how many CDs Nate has?

a)

6-c

b)

6+c

c)

c-6

d)

c+6

60.

There were x cookies at the beginning of a party. Jefferson ate 16 of the cookies.

a)

16

b)

J + 16

c)

16 - J

d)

J - 16

61.

If g represents Edna’s grade, which expression shows that she earned 5 points extra credit?

a)

$g\ +\ 5$

b)

$g\ -\ 5$

c)

$5g$

d)

$\frac{g}{5}$

62.

If p represents the points Kia scored in a game, which expression shows how she tripled her point total?

a)

$3p$

b)

$3\ -\ p$

c)

$3\ +\ p$

d)

$\frac{p}{3}$

UNIT 13 VOCAB & REVIEW

Total questions: 62

Worksheet time: 3hrs 57mins

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