Ch.5 Test Review

Ch.5 Test Review

Write fractions as decimals

• Use long division or a calculator

•  $-\ \frac{18}{25}\ =$  

• A. -0.72

• B. -0.28

• C. 1.07

• D. 1.38888...

Multiple Choice

Write  $\frac{12}{16}$   as a decimal

• 0.7

• 0.75

• 0.7555

Repeating and Terminating Decimals

• Repeating decimals use bar notation

• Example:  $\frac{1}{3}=0.\overline{3}$   

• Terminating decimals have a repeating zero or a clear ending number

• Example:  $\frac{1}{4}=0.25$  

Multiple Choice

Write  $\frac{11}{16}$   as a decimal

• 0.62

• 0.61

•  $0.6\overline{1}$  

Comparing and ordering rational numbers

• Convert everything to decimals or fractions with the same denominators then order or compare

• Example:  $0.\overline{15}_{\ \ }.........\frac{3}{20}$  

•                   $0.\overline{15}\ \ >\ 0.15$  

• Example:  $-4.08,\ \frac{1}{3},\ -\ \frac{2}{5},\ 0.5$  

• Order least to greatest

•                  $-4.08,\ -0.4,\ 0.\overline{3},\ 0.5$  

Multiple Choice

 $\frac{5}{11}......\ \frac{5}{9}$  

Make the statement true:

• <

• >

• =

•  $\ge$  

Multiple Choice

 $1.05,\ \frac{5}{7},\ 0.25,\ \frac{3}{4}$  

Order from least to greatest:

•  $\frac{3}{4},\ \frac{5}{7},\ 0.25,\ 1.05$  

•  $0.25,\ \frac{5}{7},\ \frac{3}{4},\ 1.05$  

•  $0.25,\ \frac{3}{4},\ \frac{5}{7},\ 1.05$  

Absolute Value

• The distance from zer

• When solving absolute value, the answer is ALWAYS positive

• Example:  $\left|-7\right|=7$  

• Example:  $\left|5\right|=5$  

• Example:  $\left|-8\right|-\left|3\right|=$  

•                       $8-3=5$  

• Example:  $\left|11+3\right|=14$  

Multiple Choice

 $\left|-9\right|=$  

Evaluate:

• 9
  

• -9

• 0

Multiple Choice

 $\left|-5\right|+\left|3\right|=$  

Evaluate:

• -2

• 2

• 8

• -8

Multiple Choice

What is the opposite of 23?

• $\frac{1}{23}$

• 23

• -23

Identify integers on a number line

• Identify where the point is on the number line

• Next, identify what integer that point represents

Multiple Choice

Which set of integers is graphed on the number line?

• {-3, 1, 2, -7}

• {-3, -1, 2, 7}

• {-3, 7, 1, -2}

Graphing on a coordinate plane

• Quadrants are labeled counter clockwise

• x-axis is horizontal (left to right)

• y-axis is vertical (up and down)

• (x,y)

• if the x coordinate is negative - go left

• if the y coordinate is negative - go down

Multiple Choice

Which ordered pair represents the point on the coordinate plane?

• (2,3)

• (3,2)

• (1,5)

• (0,2)

Write an integer to represent the situation

• I lose 5 pounds = -5

• I earn $75 = $75

• 3 yards behind the winner = -3

Multiple Choice

Write an integer to represent the situation: 3 feet below the ground

• 3

• -3

Poll

Do you feel ready for the test?

• Yes

• No

• Yes, but I need to study

Multiple Choice

What is the opposite of 23?

• $\frac{1}{23}$

• 23

• -23