Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.
Make tables of equivalent ratios relating quantities with whole-number measurements, find missing values in the tables, and plot the pairs of values on the coordinate plane. Use tables to compare ratios.
Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
Track each student's skills and progress in your Mastery dashboards
Give this quiz to my class
Q 1/28
Score 0
If 20% of a number is 50, what is the whole number?
30
150
200
100
250
Q 2/28
Score 0
A teacher has 60% of her 30 students who passed a test. How many students passed?
30
15
24
18
12
28 questions
Q.
If 20% of a number is 50, what is the whole number?
1
30 sec
6.RP.A.3.C
Q.
A teacher has 60% of her 30 students who passed a test. How many students passed?
2
30 sec
6.RP.A.3.C
Q.
If 15% of a quantity is 45, what is the whole quantity?
3
30 sec
6.RP.A.3.C
Q.
What is 25% of 80?
4
30 sec
6.RP.A.3.C
Q.
If 40% of a quantity is 80, what is the whole quantity?
5
30 sec
6.RP.A.3.C
Q.
A store is having a sale, offering 30% off a jacket. If the discount amount is $24, what is the original price of the jacket?
6
30 sec
6.RP.A.3.C
Q.
70% of the students in a class are girls. If there are 21 girls, how many students are in the class?
7
30 sec
6.RP.A.3.C
Q.
A book costs $12 after a 20% discount. What was the original price of the book?
8
30 sec
6.RP.A.3.C
Q.
A car dealership sold 12 cars in a week, which is 80% of the cars they had. How many cars did they originally have?
9
30 sec
6.RP.A.3.C
Q.
If 18 is 90% of a number, what is the original number?
10
30 sec
6.RP.A.3.C
Q.
A car travels 180 miles in 3 hours. What is the car's speed in miles per hour?
11
30 sec
6.RP.A.3.B
Q.
If 5 oranges cost $2.50, what is the unit price of one orange?
12
30 sec
6.RP.A.3.B
Q.
A cyclist travels 24 miles in 2 hours. What is the cyclist's average speed in miles per hour?
13
30 sec
6.RP.A.3.B
Q.
If 12 pencils cost $3.60, what is the cost of one pencil?
14
30 sec
6.RP.A.3.B
Q.
A train travels 300 miles in 5 hours. What is the average speed of the train in miles per hour?
15
30 sec
6.RP.A.3.B
Q.
Sara bought 8 notebooks for $12. What is the price of one notebook?
16
30 sec
6.RP.A.3.B
Q.
If a car travels 240 miles on 8 gallons of gas, what is the car's fuel efficiency?
17
30 sec
6.RP.A.3.B
Q.
If 6 hamburgers cost $18, what is the cost of one hamburger?
18
30 sec
6.RP.A.3.B
Q.
A runner completes 15 miles in 2.5 hours. What is the runner's average speed in miles per hour?
19
30 sec
6.RP.A.3.B
Q.
A recipe uses 4 cups of flour to make 8 cookies. How many cups of flour are needed per cookie?
20
30 sec
6.RP.A.3.B
Q.
A recipe uses a ratio of 2 cups of flour to 3 cups of sugar. If you want to make a larger batch and you need 12 cups of sugar, how many cups of flour do you need to maintain the same ratio?
21
30 sec
6.RP.A.3.A
Q.
Maria mixes yellow and blue paint in a ratio of 1:2 to make green paint. If she has used 4 cups of blue paint, how many cups of yellow paint does she need to maintain the same ratio?
22
30 sec
6.RP.A.3.A
Q.
A fruit punch recipe requires 3 cups of orange juice for every 2 cups of pineapple juice. If you have 9 cups of orange juice, how many cups of pineapple juice do you need to keep the ratio?
23
30 sec
6.RP.A.3.A
Q.
A recipe calls for 5 teaspoons of sugar for every 8 teaspoons of flour. If you have 20 teaspoons of sugar, how many teaspoons of flour do you need to keep the same ratio?
24
30 sec
6.RP.A.3.A
Q.
A machine fills 180 bottles in 12 minutes. What is the equivalent ratio of bottles filled per minute?
25
30 sec
6.RP.A.3.A
Q.
A bag contains red and blue marbles in the ratio 7:5. If there are 35 red marbles, how many blue marbles are there?
26
30 sec
6.RP.A.3
Q.
A recipe uses 2 tablespoons of salt for every 5 cups of water. If you use 15 cups of water, how many tablespoons of salt are needed?
27
30 sec
6.RP.A.3
Q.
In a fruit punch, the ratio of cups of orange juice to cups of pineapple juice is 5:3. How many cups of orange juice are needed if there are 18 cups of pineapple juice?
