Percent Basics
A percent is a ratio comparing a number to...
100
How do you find 10% of a number?
Divide by 10
Find 20% of 50
10
Fill in the missing value on the double number line:
100% → 250
30% → ___
75
A store gives 10% off a $40 shirt. What is the discount?
$4
Write 35% as a decimal:
0.35
Find 1% of 250.
2.5
Find 30% of 250.
75
A double number line shows 1% = 3. What is 50%?
150
35% of the school’s 400 students went to the basketball game. How many is that?
140
3/10 written as a percent:
30%
If 10% of a number is 14, what is the whole?
140
Find 44% of 250.
110
If 100% is 40 muffins, use a double number line to find 25%.
10 muffins
A singer donates 1% of profits. If profit is $7,500, how much is donated?
$75
True or False: 102% is more than the whole?
True
If 1% = 5, what is 7%?
35
Find 67% of 300.
201
On a double number line, 0% lines up with 0 and 100% lines up with 200.
What value lines up with 50%?
100
Attendance at the literacy night was 44% of the concert attendance (250 people). How many attended literacy night?
110
How 1%, 0.01, and 1/100 are related?
They are all the same value.
Use 1% and 10% to find 17% of 500.
85 (1%= 5 and 10% = 50)
Beyoncé donates 12% of her t-shirt sales. If she sells $3,200, how much does she donate?
384
Using a double number line:
100% → 3,200
67% → ?
2,144
The drama play attendance was 102% of the concert attendance (250). How many attended the drama play?
255