Chapter 5 Review CC2

Chapter 5 Review
Probability and Solving Word Problems

Topics

• ​5-D Process

• Writing Equations

• Probability Models

• Order of Operations

Multiple Select

Which are actual steps of the 5D Process? (Hint: There is more than one!)

• Declare

• Determine

• Do

• Define

• Demonstrate

Multiple Choice

Tilly and Lilly worked together on a job. Tilly earned twice as much as Lilly, and together they earned $510.

If we use x to represent Lilly, how can we show that Tilly earned "twice as much as Lilly"?

• $$\frac{x}{2}$$

• x - 2

• x + 2

• 2x

Multiple Choice

Tilly and Lilly worked together on a job. Tilly earned twice as much as Lilly, and together they earned $510.

What should happen in the DO step of the 5D Process?

• Subtract Lilly's earnings minus Tilly's earnings

• Add the earnings of both girls together

• Multiply the earnings of both girls together

• Divide 510 by 2

Multiple Choice

What do you have to do in the DECLARE step of the 5D Process?

• Decide if the sum you got matches the problem.

• Write the numbers used in the problem.

• Write the answer to the question in a sentence.

• Draw a diagram of the problem.

Writing Equations & Expressions

x should represent what the question asked you for.

Use words from the problem to decide if you should use multiplication, division, addition or subtraction.

Multiple Choice

What operation is the phrase "more than" associated with?

• Addition
• Subtraction
• Multiplication
• Division

Multiple Choice

What operation is the word "times" associated with?

• Addition
• Subtraction
• Multiplication
• Division

Multiple Choice

What operation is the phrase "less than" associated with?

• Addition
• Subtraction
• Multiplication
• Division

Multiple Choice

What operation is the word "half" associated with?

• Addition
• Subtraction
• Multiplication
• Division

Writing Equations & Expressions

Jake took a shuttle from the hotel to the airport. He paid $5 per mile plus an $8 flat fee. His total cost was $63. How many miles was the hotel from the airport? 

​What should x represent in our equation?

Writing Equations & Expressions

Jake took a shuttle from the hotel to the airport. He paid $5 per mile plus an $8 flat fee. His total cost was $63. How many miles was the hotel from the airport? 

5x + 8 = 63

What does x need to be to make this true?

Multiple Choice

If chocolate chip cookies cost $3.00 per cookie plus $2 for boxing them up in a decorated box, what would the expression be?

• 3 + 2x

• 3x + 2

• 3x + 2x

• 5x

Multiple Choice

What could this represent? 7x + 2 = 30

• Buying pet turtles for $7 each plus two cans of turtle food cost $30.

• Seven bags of candy plus 2 extra snickers bars equals 30 dollars.

• Two yoyos plus seven frisbees is thirty cents.

• Buying seven calculators plus $2 per bundle of pencils is $30.

Multiple Choice

Dexter's Gym charges a one-time registration fee of $40 and $20 each month. The total fee after x months is $340. Which equation models this situation?

• 40x + 20 = 340

• 20x + 40 = 340

• 20x - 40 = 340

• 20 + 340 = 40x

Probability Models

• Probability Table

• Probability Tree

• Systematic List

Multiple Choice

What are the number of outcomes in this tree diagram?

• 16

• 10

• 1/8

• 8

Multiple Choice

This is an example of a...

• Tree Diagram

• Table/Area Model

• List

Order of Operations

PEMDAS

Parenthesis
Exponents
Multiplication & Division (from left to right)
Addition & Subtraction (from left to right)

Multiple Choice

4 + 2 x 8

• 48

• 20

• 14

• 40

Multiple Choice

18 + (6 – 2) × 2

• 26
• 29
• 44
• 40

Multiple Choice

Solve

-3 + -2

• 5

• 6

• -6

• -5

Multiple Choice

Solve:

25 + -63

• 88

• -88

• 38

• -38