Unit 4 Review

Unit 4 Test Review!

​Absolute Value

• Absolute Value can only be positive

• Another name for this is "magnitude"

• You will know absolute value when you see a number in between two lines like |x|

• Absolute Value tracks a number's distance from 0

Reorder

Reorder the following

• |100|

• 87

• |-73|

• 47

• -50

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Which expression shows the absolute value of negative five?

• -|5|

• |-5|

• -5

• 5

​Distributive Property

• When you take one number and multiply it by 2 other numbers

• It will look like

  • M x (A+B) OR M x (A-B)

  • (M x A) + (M x B) OR (M x A) - (M X B)

Multiple Choice

Which problem shows the distributive property

• 12 + (15 X 10)

• 12 - (15 X 10)

• 12 X (15 + 10)

• (12 X 15) + (12 - 10)

Draw

What is the answer to this problem?

(12 X 10) + (12 X 15)

​Variables and Expressions

• A variable is used when we do not know what the value is.

• When we know the value, we substitute the variable for the value

• When a number and a variable are next to each other like 3x, that means multiplication

• An expression is a math sentence with no equal sign

• It has numbers, an operation sign, and it might even include a variable

Multiple Choice

Maggie is 7 years younger than Carrie. If Maggie is M years old, how old is Carrie?

• 7M

• M - 7

• M x 7

• M + 7

Drag and Drop

2x + 15 = 33 When X equals ​ ​

Placeholder

​

Drag these tiles and drop them in the correct blank above

9

1-

10

4

4

Multiple Choice

16 - 3x = 1 when X equals what

• 5

• 15

• 12

• 10