6.4B Review for STAAR

6.4B Review for STAAR

Proportionality​

What are different ways to show a ratio?

Ratio's can be shown in different ways.

​The order of the words matches the order of the numbers.

Multiple Select

What 3 ways can you write a ratio?

• $$1\ to\ 4$$ Using the word "to"

• $$1:4$$ Colon

• fraction $$\frac{1}{4}$$

• $$1\ -\ 4$$ Dash

More examples of equivalent ratios?

​The order of the words in the statement will math the order of the numbers!

​If you change the order of the numbers, the ratio will be different.

Multiple Choice

A cookie recipe calls for 3 cups of flour and 2 cups of chocolate chips. What is the ratio of chocolate chips to flour?

• 3 : 2

• 3 to 2

• 6 : 4

• 2 : 3

Multiple Choice

In a first-aid kit the ratio of large bandages to small bandages is 3 to 2.

What number goes with small bandages?

• 3

• 2

• 5

Multiple Choice

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7
• 7 to 5
• 5 to 12
• 7 to 12

Multiple Choice

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4
• 5:11
• 2:5
• 6:5

Multiple Choice

Simplify to lowest terms

• 6
• $$\frac{2}{8}$$  

• $$\frac{1}{6}$$  

•   $$\frac{2}{12}$$  

Multiple Choice

A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. Which ratio of gallons of blue paint to gallons of yellow paint will make the same shade of green paint?

• 30 : 54

• 6 : 10

• 10 :45

• 27 : 15

To get the unit rate, divide the numerator by the denominator.

Multiple Choice

Four pounds of bananas cost $6.  What is the cost per pound of bananas?

• $24 per pound
• $1.50 per pound
• $1 per pound
• $6 per pound

Multiple Choice

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

Multiple Choice

Which is the better deal?
Oreos
$2.98 for 15 oz
OR
Chips Ahoy
$2.50 for 14 oz

• Oreos
• Chips Ahoy

​STRATEGY is KEY

• ​What do the letters mean?

• How do I use it?​

​U = Units (What is the story talking about? This is a word ratio)

K = Know (Put in the numbers that you know.​)

S = Scale Factor (What are you multiplying or dividing by?)

N = Need (One of the numbers might be missing because you need to find it!)​

Multiple Choice

What does the "S" stand for?

• something

  "I will probably be in summer school."

• scale

  "What you multiply or divide by."

• sum

  "This is where you add the numbers."

​What about a TOTAL line?

​You might have to use your BRAIN to find a missing number!

​How will you find the missing number? Add, Subtract, Multiply or Divide

Multiple Choice

What number is missing?

• 23

• 203

• 60

• 17

​Let's practice...

​You will need the paper with the graphic organizers!

Multiple Choice

A punch recipe calls for 4 cups of lemonade to 3 cups of sparkling juice. If Sara uses 9 cups of sparkling juice, then how many cups of lemonade does she need?

• 16 cups

• 12 cups

• 24 cups

• 42 cups

Multiple Choice

The car travels 440 miles in 8 hours. What is the unit rate?

• 12 miles in 1 hour

• 55 miles in 1 hour

• 110 miles in 1 hour

• 44 miles in 1 hour

Multiple Choice

There are 176 slices of bread in 8 loaves. If there are the same number of slices in each loaf, how many slices of bread are in 5 loaves?

• 110

• 173

• 100

• 163

Multiple Choice

Quinlan pays $178 every 4 months for his guitar lessons. At this rate, how much will Quinlan pay for 3 years of guitar lessons?

• $534

• $2,136

• $1,602

• $712

Multiple Choice

At a hot dog stand, they serve regular and footlong hot dogs at a ratio of 5 to 3.  Based on this ratio, how many footlong hot dogs will be served if there is a total of 120 dogs served?

• 15 footlong hot dogs

• 45 footlong hot dogs

• 24 footlong hot dogs

• 40 footlong hot dogs

Multiple Choice

In the high school band there are 2 percussionists on the sidelines to every 13

marching instruments. If the high school band has 180 total members, then how many percussionists are on the sidelines?

• 24 percussionists

• 90 percussionists

• 12 percussionists

• 15 percussionists

Multiple Choice

Each math teacher has math books and white boards in her classroom. The ratio of books to the total number of items is 13 to 21. Which number could be the number of white boards a teacher has in her classroom?

• 34 white boards

• 0.62 white boards

• 40 white boards

• 42 white boards