Free Printable Math 9 Review

1.

Simplify by combining like terms:
5a + 2b - 3a + 4

a)

8a + 2b + 4

b)

2a + 2b + 4

c)

8ab

d)

4ab + 4

2.

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

a)

7, 24y

b)

3x, 9x

c)

3x, -9x

d)

3x, -9x, 2x²

3.

Simplify by combining like terms:
4x² - 3x + 11 -2x

a)

4x² - 5x + 11

b)

11x + 11

c)

16x² - 5x + 11

d)

10x²

4.

Simplify the following expression:
-7x +5 (1 - 8x)

a)

-33x + 5

b)

5 + 33x

c)

47x + 5

d)

5 - 47x

5.

Simplify the following expression:
-8 (5b + 2) -7 (b - 5)

a)

-33b + 19

b)

-47b² + 21

c)

33b - 19

d)

-47b -19

6.

Simplify the following expression:
19 - ( 3 - 5b)

a)

16 + 5b

b)

21 + 5b

c)

16 - 5b

d)

21 - 5b

7.

Simplify the following expression:
(5 + 7p²) - (2p⁴ - 3)

a)

2 + 7p² + 2p⁴

b)

2p⁴ + 7p² + 13

c)

-2p⁴ - 7p² + 2

d)

-2p⁴ + 7p² + 8

8.

-x (4 + 5y)

a)

-4x + 5xy

b)

4x + 5xy

c)

-4x - 5xy

d)

4x - 5xy

9.

Simplify: (x + 3) (x + 2)

a)

x² + 6x + 5

b)

x² + 5

c)

x² + 11

d)

x² + 5x + 6

10.

Simplify: (x + 1) (x²- 2x + 1)

a)

x³- x²-x + 1

b)

x³- 2x + 2

c)

x³+ x²+ x + 1

d)

x³- 3x²- 3x + 1

11.

Simplify: (2a - 3) (3a + 1)

a)

6a²+ 7a - 3

b)

6a²+ 5a - 3

c)

6a² - 7a - 3

d)

6a²- 9a + 3

12.

Find the difference.
(3- 2x + 2x²) - (4x -5 +3x²)

a)

x_² + 6x + 8

b)

2x²+ 5x - 7

c)

-x²-6x + 8

d)

-2x² + 11x - 4

13.

Simplify the expression.
-3x²( 7x²- x + 4)

a)

-21x⁴ + 3x³ -12x²

b)

7x² - x + 4 (-3x²)

c)

21x⁴+ 3x³+ 12x²

d)

-12x²+ 3x³-21x⁴

14.

Multiply.
(b+3)(b²+2b+1)

a)

b³+6b²+6b+3

b)

b³+5b²+7b+3

c)

4b³+8b²+3b

d)

3b³+6b²+3b

15.

Find the perimeter of the rectangle

a)

P= 10x + 2

b)

P= 12x

c)

P = 12

d)

P = 6x² + 3x

16.

Simplify the following expression:
-8 (5b + 2) -7 (b - 5)

a)

-33b + 19

b)

-47b² + 21

c)

33b - 19

d)

-47b +19

17.

-7 - (-2) = ?

a)

9

b)

-9

c)

-5

d)

5

18.

(-9)(-8)

a)

-72

b)

72

c)

81

d)

-81

19.

According to exponent rules, when we multiply powers we _______ the exponents.

a)

add

b)

subtract

c)

multiply

d)

divide

20.

How do you solve:
(2x⁵)(6x⁴)

a)

MULTIPLY coefficients
MULTIPLY exponents

b)

DIVIDE coefficients
SUBTRACT exponents

c)

Combine like terms

d)

MULTIPLY coefficients
ADD exponents

21.

(2⁸)²

a)

2¹⁶

b)

2¹⁰

c)

2⁶

d)

2⁴

22.

x⁻⁶

a)

1 ⁄ x⁶

b)

x⁶

c)

-x⁶

d)

-1 ⁄ x⁶

23.

8⁷ ⁄ 8²

a)

8⁵

b)

8⁹

c)

8¹⁴

d)

1⁵

24.

3⁻⁴

a)

1 ⁄ 3⁴

b)

-3⁴

c)

3⁴

d)

1 ⁄ 12

25.

(2x³y)⁶

a)

2x¹⁸y⁶

b)

64x¹⁸y⁶

c)

64x³y⁶

d)

2x³y⁶

26.

(5³x²y⁴)⁰

a)

5xy

b)

1

c)

0

d)

5

27.

Simplify (-4r⁵)(2r⁸)

a)

-8r¹³

b)

-2r¹³

c)

-8r⁴⁰

d)

-2y⁴⁰

28.

n²⋅n⁴⋅n⁵

a)

n¹¹

b)

n⁴⁰

c)

n¹³

d)

n²²

29.

Simplify:
b⁴ x b⁻³ ÷ b⁻²

a)

b³

b)

b⁻³

c)

b⁵

d)

b⁻¹

30.

Simplify the expression.

a)

8ac

b)

-24abc

c)

-8ac

d)

-8abc

e)

8a⁹b⁶c³

31.

Simplify

a)

-6c

b)

6c⁵

c)

15c⁵

d)

15c

32.

Simplify the following expression:

a)

14x⁶

b)

14x³

c)

9x³

d)

9x⁶

33.

Which expression is equivalent to the given expression?

a)

b)

c)

d)

34.

Which expression is equivalent to the following expression?

(13x²y^-7z⁴)⁰

a)

x²z⁴/y⁷

b)

13x²z⁴/y⁷

c)

13

d)

1

35.

Simplify the expression (ab⁴)(2ab⁴)^-3

a)

b)

c)

d)

36.

Select all answers that are equal to

\frac{1}{4}

a)

$4^{-1}$

b)

$2^4\cdot2^{-6}$

c)

$4^{-2}\cdot4^3$

d)

$\frac{2^3}{2^5}$

e)

$\frac{4^3}{4^2}$

37.

Evaluate $3v^2\cdot5v^{-3}$

a)

$\frac{15}{v}$

b)

$20v$

c)

$20v^5$

d)

$15v^5$

38.

Simplify $\frac{6x^{-5}}{5x^6}$

a)

$\frac{3}{2x^4}$

b)

$\frac{6}{5x^{11}}$

c)

$\frac{1}{2x^3}$

d)

$\frac{6x^2}{5}$

39.

Simplify $\left(5x^3\right)^2$

a)

$8x^{15}$

b)

$25x^6$

c)

$9x^4$

d)

$\frac{1}{3125x^5}$

40.

Simplify $\left(2p^3\right)^{-3}$

a)

$16p^{10}$

b)

$\frac{1}{8p^9}$

c)

$\frac{8}{p^9}$

d)

$243p^{10}$

41.

$\left(2n^{-3}\right)^5$

a)

$\frac{36}{n^{10}}$

b)

$\frac{1}{n^4}$

c)

$\frac{32}{n^{15}}$

d)

$256n^8$

42.

Which expression can also be used to calculate the expression above?

a)

b)

c)

d)

43.

Complete the equivalent fraction.

a)

6

b)

9

c)

15

d)

23

44.

Is this a correct answer?

a)

Yes, the student correctly added.

b)

No, you cannot add unlike denominators

c)

No, 5 + 7 is not 12

d)

No, 2 + 3 is not 5

45.

Simplify the expression
$-4\ \times\ \left(-9\ \frac{1}{3}\right)$

a)

$37\ \frac{1}{3}$

b)

$-37\ \frac{1}{3}$

c)

$-\frac{3}{112}$

d)

$-\frac{3}{7}$

46.

Simplify the expression
$-\frac{13}{14}\ \times\ \left(-6\right)$

a)

$5\frac{4}{7}$

b)

$-5\frac{4}{7}$

c)

$\frac{13}{84}$

d)

$-\frac{13}{84}$

47.

$-\frac{5}{14}\ \div\ -1\ \frac{3}{7}$

a)

$-\frac{1}{4}$

b)

$\frac{1}{4}$

c)

$-\frac{25}{49}$

d)

$\frac{25}{49}$

48.

Simplify the expression:
$-1\ \frac{7}{8}\ \div\ \frac{9}{6}$

a)

$1\ \frac{1}{4}$

b)

$-1\ \frac{1}{4}$

c)

$2\ \frac{13}{16}$

d)

$-2\frac{13}{16}$

49.

Between which two whole numbers is the square root of 277?

a)

15 and 16

b)

16 and 17

c)

18 and 19

d)

14 and 15

50.

What type of number is (-7)?

a)

whole, integer

b)

integer, whole

c)

rational, integer

d)

rational

51.

What type of number is 1/4?

a)

rational number, integer, whole

b)

integer, whole

c)

rational only

d)

integer, whole

52.

What type of number is 5.382758921574...? Check all that apply.

a)

Natural

b)

Integer

c)

Rational

d)

Irrational

53.

The temperature was 80 degrees in the afternoon. It was 50 degrees in the evening. How much did the temperature change?

a)

25 degrees

b)

30 degrees

c)

130 degrees

d)

20 degrees

54.

Bob lost 5 points on page one of his math test and he lost 9 points on page two of his math test. Which equation best describes Bob progress on his math test?

a)

5 + 9 = 14

b)

-5 + (-9) = -4

c)

-5 + (-9) = -14

d)

5 + (-9) = -4

55.

Jim is driving 55 miles per hour. If Jim drives for 9 hours, how far did he travel?

a)

500 miles

b)

580 miles

c)

495 miles

d)

6 miles

56.

$-10\ -18\ =$

a)

-8

b)

8

c)

-28

d)

2

57.

What is the total surface area of the triangular prism shown?

a)

468 in²

b)

540 in²

c)

576 in²

d)

700 in²

58.

a)

575.3 cm

b)

287.6

c)

398.5

d)

604.1

59.

Find the lateral area and surface area of each figure. Round your answers to the nearest tenth, if necessary.

a)

203.4 m²; 297 m²

b)

37.7 m²; 50.3 m²

c)

50 m²; 75 m²

d)

150 m²; 254.5 m²

60.

Find the lateral area and surface area of each figure. Round your answers to the nearest tenth, if necessary.

a)

183.0 cm²; 233.2 cm²

b)

188 cm²; 259 cm²

c)

83.7 cm²; 93.2 cm²

d)

190 cm²; 240 cm²

61.

Find the volume of the figure.

a)

63 cm³

b)

91 cm³

c)

819 cm³

d)

409.5 cm³

62.

Find the volume of this shape

a)

1520.53

b)

276.46

c)

552.93

d)

6082.12

63.

Find the volume of the cone. Round your answers to the nearest tenth.

a)

127.3 yd³

b)

347.6 yd³

c)

287.7 yd³

d)

147.7 yd³

64.

Which cylinder will have a larger volume?

a)

Cylinder A

b)

Cylinder B

65.

Find the volume of the 3Dimensional shape

a)

904.32 ft³

b)

7,234.56 ft³

c)

150.72 ft³

66.

What is the volume of the composite solid?

a)

301.6 cm³

b)

502.7 cm³

c)

268.1 cm³

d)

167.6 cm³

67.

Find the volume of the prism.

a)

27 cm³

b)

72 cm³

c)

180 cm³

d)

360 cm³

68.

Which set of sides would make a right triangle?

a)

4,5,6

b)

8,10,12

c)

5,12,13

d)

5,10,12

69.

a² + b² = c^{2
a = 9 b = 40}

a)

c = 41

b)

c = 65

c)

c = 25

d)

c = 5

70.

a² + b² = c^{2
b = 35 c = 37}

a)

a = 12

b)

a = 11

c)

a = 18

d)

a = 14

71.

_{^{Find the missing side}}

a)

9

b)

41

c)

6.4

d)

3

72.

What is the longest side of a right triangle called?

a)

Leg A

b)

Leg B

c)

Hypotenuse

d)

Pythagoras' Big Buddy

73.

Find the length of the missing side.

a)

20 in.

b)

68 in.

c)

16 in.

d)

80 in.

74.

The size of a television screen is measured by the length of the diagonal of the screen. What size is a television screen that is 3 feet tall and 6 feet wide?

a)

18

b)

6.7

75.

Determine if the following set of numbers are Pythagorean Triples.
15, 20, 25

a)

Yes

b)

No

76.

If 36 and 48 are the two smaller numbers in a Pythagorean Triple, what is the third number?

a)

45

b)

50

c)

55

d)

60

77.

Find h

a)

35.60

b)

35.00

c)

35.71

d)

61.03

78.

You need a ladder that will reach up a 25 foot tall house when placed 10 feet away from the house. How tall does the ladder need to be?

a)

25 feet

b)

26 feet

c)

27 feet

d)

28 feet

79.

Cos X

a)

⁸/₁₅

b)

¹⁷/₁₅

c)

¹⁵/₁₇

d)

⁸/₁₇

80.

Sin X

a)

¹⁵/₁₇

b)

⁸/₁₅

c)

¹⁷/₈

d)

¹⁵/₈

81.

Tan X

a)

³⁰/₄₀

b)

³⁰/₅₀

c)

⁴⁰/₃₀

d)

⁴⁰/₅₀

82.

What is the ratio for Tangent

a)

Opp/Adj

b)

Adj/Opp

c)

Opp/Hyp

d)

Hyp/Opp

83.

What is the ratio for Sine?

a)

Hyp/Opp

b)

Opp/Hyp

c)

Opp/Adj

d)

Adj/Opp

84.

What is the correct ratio for Cos C?

a)

⁹/₄₁

b)

⁴⁰/₄₁

c)

⁹/₄₁

d)

⁴⁰/₉

85.

What is the correct ratio for Tan Z?

a)

⁷/₂₄

b)

²⁴/₇

c)

⁷/₂₅

d)

²⁴/₂₅

86.

Identify the trig ratio that may be used to find the marked unknown side.

a)

$Sin\ 38\degree\ =\ \frac{h}{15}$

b)

$Sin\ 38\degree\ =\ \frac{15}{h}$

c)

$Cos\ 38\degree\ =\ \frac{15}{h}$

d)

$Tan\ 38\degree=\ \frac{h}{15}$

87.

Identify the trig ratio that may be used to find the marked unknown side.

a)

$Sin\ 29\degree=\frac{x}{91}$

b)

$Tan\ 29\degree\ =\ \frac{91}{x}$

c)

$Cos\ 29\degree\ =\ \frac{x}{91}$

d)

$Tan\ 29\degree=\ \frac{x}{91}$

88.

Identify the trig ratio that may be used to find the marked unknown side.

a)

$Sin\ 38\degree=\frac{w}{15}$

b)

$Cos\ 38\degree\ =\ \frac{15}{w}$

c)

$Tan\ 38\degree\ =\ \frac{w}{15}$

d)

$Sin\ 38\degree=\ \frac{15}{w}$

89.

$\sqrt{54}$ is between which two integers

a)

3 and 4

b)

4 and 5

c)

8 and 9

d)

7 and 8

90.

$\sqrt{2}$ and $\pi$ are _____ numbers?

a)

Whole

b)

Irrational

c)

Rational

d)

Non-real

91.

a)

√32, √324, √101, √44

b)

√64, √121, √324, √361

c)

√64, √324, √361, √44

d)

√32, √44, √101, √64

92.

Mrs. Hiltz and Ms. Weber decide to host a lemonade stand. The table they use has side lengths of 5 feet. What is the area of their table?

a)

25 feet

b)

25 square inches

c)

5 ft²

d)

25 square feet

93.

The area of a square is 100 cm². What is the perimeter?

a)

25 cm

b)

10 cm

c)

40 cm

d)

50 cm

94.

x² = 121
What does x equal?

a)

11²

b)

11 and -11

c)

20 and 11

d)

12 and 1

95.

What does the "b" stand for in y=mx+b?

a)

slope

b)

x-intercept

c)

y-intercept

96.

What is the slope of the line passing through the points (3,5) and (-1,7)?

a)

-1/2

b)

-1

c)

-2

d)

1/2

97.

What letter represents the slope of a line in the equation y = mx + b?

a)

y

b)

m

c)

x

d)

b

98.

What is the equation for the line with a slope of 7 and passes through (0,1)?

a)

y = -7x + 1

b)

y = 7x + 1

c)

y = -1/7x - 1

d)

y = -1/7x + 1

99.

Give the equation for the graph

a)

y = 5x - 3

b)

y = 4x + 2

c)

y =-2x + 5

d)

y = - 2x + 4

100.

Given the equation y = 2x+3, what is the slope?

a)

2

b)

x

c)

3

d)

IDK

101.

What is the y-intercept of this graph?

a)

(0,1)

b)

(0,-2)

c)

(0,0)

d)

(0,3)

102.

What is the equation of this line?

a)

0

b)

undefined

c)

y = -2

d)

x = -2

103.

What is the equation of the line in the graph?

a)

y = 3

b)

x = 3

c)

x = 0

104.

Write the equation of a line with a slope of 0 through the point (3, -1).

a)

y = 3x - 1

b)

y = -1

c)

x = 3

d)

x = -1

105.

Graph. y = 2/3x - 3

a)

a

b)

b

c)

c

d)

d

106.

Graph. y = -4

a)

a

b)

b

c)

c

d)

d

107.

Given the table, write the equation in the slope-intercept form.

a)

y = 1/3x + 6

b)

y = 3x + 6

c)

y = 2x + 6

d)

y = 1/2x + 6

108.

What is the definition of a coefficient?

a)

The letter used to represent a quantity

b)

The little number or letter used to raise to a power

c)

The number in front of a variable

d)

The number in back of a variable

109.

What is the definition of a variable?

a)

The letter used to represent a quantity

b)

The little number or letter used to raise to a power

c)

The number in front of a variable

d)

The number with no variable

110.

Which of the following is an expression?

a)

6x + 2x = 6

b)

10 = 5x

c)

2x + 6x - 10

d)

6x² + 10 = 25

111.

What is the correct equation in
Slope-Intercept Form?
(y = mx +b)

a)

y = 1/3x - 1

b)

y = 1/4x -1

c)

y = -1/3x +1

d)

y = -1/4x + 1

112.

What is the correct equation in
Slope-Intercept Form?
(y = mx +b)

a)

y = 3x - 3

b)

y = 3x - 1

c)

y = -3x - 3

d)

y = -3x - 1

113.

Solve for x:
4x + 1 = 7x - 5

a)

-1

b)

2

c)

6/11

d)

8

114.

Solve for x:
2(3x + 4) + 2 = 4 + 3x

a)

2

b)

-2/3

c)

10

d)

-2

115.

5(2x - 7) = 80

a)

x = 11.5

b)

x = 115

c)

x = 12

d)

x = 16

116.

Solve for x:
2(3x + 4) + 2 = 4 + 3x

a)

2

b)

-2/3

c)

10

d)

-2

117.

2x + 3(5x - 7) = 47

a)

x = 1

b)

x = 2

c)

x = 3

d)

x = 4

118.

38 + 7k = 8(k + 4)

a)

6

b)

8

c)

-6

d)

1

119.

$\frac{s}{4}-1=2$

Solve for the given variable:

a)

5

b)

12

c)

13

d)

10

120.

3x - 5 > -26

a)

x < -7

b)

x > -7

c)

x > 7

d)

x < 7

121.

6(n + 2) < -72

a)

n < -14

b)

n < 35/3

c)

n < -10

d)

n > -14

122.

4(2a + 3) < 3(a - 1)

a)

a < -3

b)

a > -3

c)

a < 3

d)

a > 3

123.

You flip an inequality symbol when you...

a)

subtract

b)

multiply and divide only

c)

multiple by a negative number

d)

multiple or divide by a negative number

124.

-4x + 14 ≤ 54

a)

x ≥ - 10

b)

x ≤ -10

c)

x ≥ 10

d)

x ≤ 10

125.

-3 − 6(4x + 6) > -111

a)

x > 3

b)

x < 3

c)

x < -3

d)

x > -3

126.

-p − 4p > -10

a)

p > -2

b)

p > 2

c)

p < -2

d)

p < 2

127.

There are no more than 18 students on the hall.

a)

s>18

b)

s<18

c)

s≤18

d)

s≥18

128.

My sister plans to sell more than 250 boxes of cookies.

a)

c>250

b)

c<250

c)

c≤250

d)

c≥250

129.

Which graph matches the inequality
k < 3?

a)

A

b)

B

c)

C

d)

D

130.

Cell plan A is $40 plus $.04 each text
Cell plan B is $30 plus $.09 each text
Write an inequality that shows when plan A is greater that plan B

a)

40 + .04x > 30 + .09x

b)

40 + .04x < 30 + .09x

c)

40 + .04 > 30 + .09

d)

40 + .04 < 30 + .09

131.

What is the y-intercept for the given graph?

a)

-5

b)

5

c)

1

d)

-1

132.

From the equation y = 4x - 12,
identify the y-intercept.

a)

12

b)

3

c)

-12

d)

1/3

133.

Identify any x-intercepts for the graph below.

a)

-4 and 4

b)

-3 and 3

c)

(4, 3)

d)

(-4, 3)

134.

What is the x and y intercept for the following equation ?
4x - 10y = 20

a)

x - int = 4
y-int = -10

b)

x-int = 5
y-int = 2

c)

x - int = 5
y int = -2

d)

x -int = 4
y -int = -10

135.

Determine the y-intercept for the following equation
4x + 2y = -12

a)

4

b)

-6

c)

-12

d)

2

136.

What is the x-intercept shown on the graph?

a)

(2, 0)

b)

(-2, 0)

c)

(0, 3)

d)

(3, 0)

137.

What is the y-intercept shown on the graph?

a)

(0, -2)

b)

(3, 0)

c)

(0, 3)

d)

None of these.

138.

Identify the graph with a x-intercept of 3 and a y-intercept of - 1

a)

b)

c)

d)

139.

Write in function form

-3x + 4y = 12

a)

y = -3/4 x + 3

b)

y = 3/4 x - 3

c)

y = 3/4 x + 3

d)

y = -3/4 x - 3

140.

Write in function form

-2x - 8y = -24

a)

y = -1/4 x + 3

b)

y = 4x + 3

c)

y = -4x + 3

d)

y = 1/4 x - 3

141.

$a^{-1}$ is equal to

a)

a

b)

1

c)

0

d)

$\frac{1}{a}$

142.

Which number is the exponent in the following expression?
4³ = 64

a)

4

b)

3

c)

64

d)

12

143.

Which expression is written in expanded form?

a)

4³

b)

64

c)

12

d)

4 x 4 x 4

144.

2⁵ is the same as 2 x 5.

a)

True

b)

False

c)

Maybe

d)

10

145.

Simplify the expression.
(m⁴ )2m^-3

a)

m

b)

2m

c)

2m^-1

d)

m/2m³

146.

Simplify 3x³y * 2x⁸y⁵

a)

5x¹¹y⁶

b)

6x¹¹y⁶

c)

6x²⁴y⁵

d)

3x¹¹2y⁵

147.

Classify this number: -12

a)

real

b)

real rational

c)

real irrational

d)

real rational integer

148.

How would 0.33333....(repeating) be classified?

a)

rational and real

b)

real and whole

c)

only integer

d)

only irrational

149.

Check the box or boxes after each set that the number 0 belongs to.

a)

Natural

b)

Whole

c)

Integer

d)

Rational

e)

Irrational

150.

Check all boxes after the number set/s that $\sqrt{15}$ belongs to.

a)

Natural

b)

Whole

c)

Integer

d)

Rational

e)

Irrational

151.

$\left(-9\right)-\left(-8\right)+2\times4^2$

(a)

152.

$\left(-3\right)^3-2+8\div\left(-8\right)$

(a)

153.

$\left(-5\right)^2-2\left(-9\right)+6$

(a)

154.

$\left(10\div\left(-5\right)-\left(-2\right)\right)\times\left(-3\right)^3$

(a)

155.

what is
$\left(3-2^2\left(5-3\right)\right)\div5$

a)

1

b)

-1

c)

0

d)

non of them

156.

Evaluate (solve) the expression. Write the answer in simplest form.
$\frac{4}{5\ }+\frac{2}{5}÷\ 4$

a)

$\frac{2}{5}$

b)

$\frac{6}{5}$

c)

$\frac{9}{10}$

d)

2

157.

Evaluate(solve) the expression. Write the answer in simplest form.
$\frac{2}{5}\ +\ 2\frac{4}{5}\div1\frac{3}{4}$

a)

2

b)

$2\frac{4}{5}$

c)

4

d)

$4\frac{3}{4}$

158.

.375 is what as a fraction?

a)

2/3

b)

1/5

c)

1/8

d)

3/8

159.

.125 is what fraction?

a)

1/8

b)

1/2

c)

1/3

d)

1/4

160.

What is 0.63 as a fraction?

a)

$\frac{63}{10}$

b)

$\frac{63}{100}$

c)

$\frac{63}{1,000}$

d)

$\frac{0}{63}$

161.

a)

24/99

b)

2 4/9

c)

2 2/5

d)

6/25

162.

a)

7/50

b)

14/9

c)

7/45

d)

14/99

163.

Write 0.222... as a fraction.

a)

2/10

b)

2/9

c)

1/5

d)

2/99

164.

a)

A

b)

B

c)

C

d)

D

165.

a)

A

b)

B

c)

C

d)

D

166.

7.82 x 10^-⁶ is an example of scientific notation. The exponent of -6 tells you your number will be very ________.

a)

Large

b)

Small

c)

Basic

167.

Change from standard form to scientific notation: 0.000398

a)

39.8 x 10^-5

b)

3.98 x 10^-5

c)

3.98 x 10^-4

d)

39.8 x 10^-6

168.

Try to change the number back to standard form: 6.79 x 10⁴

a)

679,000

b)

6,790

c)

67,900

d)

6,790,000

169.

Which of the following is correct scientific notation?

a)

20.35 x 10⁴

b)

.2035 x 10⁴

c)

2035⁴

d)

2.035 x10⁴

170.

Express the following in scientific notation:
.000457

a)

457 x 10⁶

b)

457 x 10^-6

c)

4.57 x10⁴

d)

4.57 x 10^-4

171.

Express the following in standard notation:
8.025 x 10^-⁸

a)

.00000008025

b)

.000000008025

c)

802,500,000,000

d)

80,250,000,000

Math 9 Review

Total questions: 171

Worksheet time: 7hrs 8mins

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