Intro to percent
In a 50-gram portion of cereal, 8 grams of it are sugar. Which of the following represents the percent of the 50-grams that is sugar?
16%
If Lynn scored 21 out of 25 points, what percent of the points did she earn? Show how you found your answer.
84%
10%
10 1
___ ___
100 10
On a 50-point quiz, Jenna earned 82% of the points. How many points did she earn?
41
A percent measures a rate
(1) per unit (3) per 100 units (2) per 10 units (4) per 1000 units
per 100 units
If 7 out of 10 people brush their teeth every night, which of the following represents the percent of people who do not brush their teeth every night?
30%
On a long unit test that contained 200 points, Lynn scored 160 total points. Was that a higher or lower percent than what she earned on the quiz?
80%
25%
25 1
___ ___
100 4
64% of 25 students in a class have a phone. How many students have a phone?
16
Finding 25% of a total is the same as finding what fraction of it?
25 1
___ ___
100 4
4. In Mr. Ford’s class, 3 out of 25 students are left-handed. Which of the following is the percent of left-handers in Mr. Ford’s class?
12%
Of 20 people in a room, 35% of them wear glasses.
Fill in the missing numerator to determine the number of people who wear glasses.
35 ?
___ = ___
100 20
35 7
___ = ___
100 20
50%
50 1
___ ___
100 2
In a school with 400 students, 22% of them are in 6th grade. How many students are in 6th grade?
88
What is 50% of 140?
70
In a survey, 12 out of 20 people said they liked chocolate better than vanilla ice cream. What percent of people liked chocolate better?
60%
42% of 50 students on the bus brought a device to play games on. How many students brought a device?
21
75%
75 3
___ ___
100 4
In a group of 700 people, only 5% of them have red hair. How many of the 700 people have red hair?
35
You can find 50% of any total by multiplying the total by all the following except which?
50 1 1 5
___ ___ ___ ___
100 , 2 , 50 , 10
1
___
50
Of 60 corn seeds that were planted, 18 of them did not sprout. What percent of the corn seeds did not sprout? Show how you arrived at your answer.
30% of the seeds did not sprout.
12% of 300 people attending an event chose fish for dinner. How many people chose fish?
36
30%
30 3
___ ___
100 10
40% of 70 ice cream orders were for vanilla. How many orders were for vanilla?
28
Which of the following represents 1% of 300?
1, 3, 30, 3
___
100
3