Ratios
What is a ratio?
A comparison of two quantities
What is 0.4 written as a percent?
40%
What strategy do we use to help us add or subtract fractions?
S - Stack the fractions
C - Find the Common Denominator
A - Add or Subtract
R - Reduce/Simplify
Y - Yay we're done!
What strategies do we use to multiply and divide fractions?
Multiply - Top X Top and Bottom X Bottom
Divide - Keep Change Flip (or multiply by the reciprocal)
What do each of the following words mean?
Sum, Product, Quotient, Difference
Sum - addition
Product - multiplication
Quotient - division
Difference - Subtraction
Write your answer in all three forms
3:4, 3 to 4, and 3/4
What is 13.9% written as a decimal?
0.139
Solve the problem. Make sure you simplify.
4/5 + 3/10 = ?
1 1/10
What is the product of 3/4 and 2/5?
BONUS 100 points OR take 200 points from another team IF you can draw a model to represent it.
6/20 = 3/10
True or False.
76% is closer to 0.5 than 48% is.
FALSE
A bag contains 10 blue marbles, 12 green marbles, 8 red marbles, and 16 yellow marbles. What is the ratio of blue marbles to total marbles? You MUST simplify your answer.
5/18
What is 9/12 written as a decimal?
0.75
Solve the following problem. Do not forget to simplify.
1 2/4 - 7/12
11/12
Find the quotient of 2/8 and 3/7
14/24 = 7/12
True or False
Percents can go over 100%
T R U E
2:7, 2 to 7, and 2/7
If Demarieh answered 17 out of 20 questions correctly on his exam, what was his score written as a percent and decimal?
0.85 and 85%
Annie had a 6 foot wooden board. She cut off 2 1/8 of it. How much of the board remains?
3 7/8
Alex normally walks 2 3/8 miles every day during track practice. If he walks three times the amount she typically walks, how many miles will Alex walk? Write your answer in simplest form.
7 1/8 miles
Order the decimals in DESCENDING order.
0.38, 0.405, 0.45, 0.05, 0.5
0.5, 0.45, 0.405, 0.38, 0.05
Create 5 equivalent ratios for the ratio given below.
Kathy has 2 notebooks for every 5 pencils.
4/10, 20/50, 40/100, 8/20, 6/15, 10/25... answers will vary
Write the following in ascending order.
1/3, 3.5%, 0.42, 4/5, 0.05
3.5%, 0.05, 1/3, 0.42, 4/5
Gerald and his family ordered 4 pizzas for dinner. His parents ate 1/2 of one pizza. His sisters ate 1 5/8 pizzas and his two brothers ate 1 3/4 pizza. How much pizza is left for Gerald?
1/8
When 14 is divided by 2/3, which statement about the quotient is true?
A) It is less than 2/3
B) It is equal to 14 2/3
C) It is greater than 14
D) It is greater than 2/3 but less than 14
C) It is greater than 14
What is the product of 2 1/4 and 3 1/3?
7 1/2