Find the Whole
15 is 20% of what number?
What is 75
15/x = 20/100
1500/20 = 75
Find 15% of 40
What is 6
Two ways to solve:
.15 X 40 = 6
15/100 = x/40
100x = 600 x = 6
Michael and Fred go to lunch. Their bill was $16. for 2 cheeseburgers & 2 milkshakes. If the tax is 5%, how much do they owe for lunch?
What is $16.80
The tax on $16 is .80 or 80 cents. The total bill is $16.80.
What % of 20 is 5?
5/20 = x/100
20x = 500
x = 25
10% of 60 is what number?
What is 6
.10 X 60 = 6 or move the decimal place one place
60. moved one decimal place to the
left is 6.
12 is 6% of what number?
What is 200
12/x = 6/100
6x = 1200
x = 200
Find 20% of 12
What is 2.4
.20 X 12 = 2.4 or 20/100 = x/12
100x = 240
x = 2.4
In Canada, they pay 5% sales tax. Melody buys a pair of shoes for $60. What is the tax on the shoes?
What is $3
.05 X 60 = 3
What % of 25 is 5?
What is 20%
5/25 = x/100 OR 5/25 = 1/5
25x = 500 1/5 = .20 or 20%
x = 20
What is 5% of 40?
What is 2
10% of 40 is 4. 5% is half of 10%, so half of 4 is 2.
45 is 70% of what number?
What is 75
45/x = 60/100
60x = 4500
x = 75
Find 35% of 60
What is 21
Short Cut: 10% of 60 is 6 so 30% is, 6 + 6 +6 = 18
5% is 3 so, 18 + 3 = 21
Cadence and Josh both want to buy a video game. Each game is $22. The tax on each game is 8%. What is the tax on the game?
What is $1.76
.08 X 22 = 1.76
What % of 10 is 2?
What is 20%
2/10 = x/100
10x = 200
x = 20
What is 15% of 60?
What is 9
10% of 60 is 6 and 5% of 60 is 3. 6 + 3 = 9.
14 is 70% of what number?
What is 200
14/x = 70/100
70x = 1400
x = 200
Find 80% of 40
What is 32
.80 X 40 = 32 OR x/40 = 80/100
100x = 3200
x = 32
Dakota bought a light saber at Target for $9. If the tax is 7.5% what is the cost of the light saber with tax?
What is $9.68
.075 X 9 = .675
.675 + 9 = 9.68
What % of 60 is 30?
What is 50%
30 is 50% of 60
What is 5% of 80.6?
What is 4.03
10% of 80 is 8 so, 5% is 4.
10% of 0.6 is .06 so, 5% is .03
4 + .03 = 4.03
30 is 22% of what number?
What is 136.36 or 136.4
30/x = 22/100
22x = 3000
x = 136.36, rounded to 136.4
Find 12% of 90
What is 10.8
.12 x 90 = 10.8 OR x/90 = 12/100
100x = 1080
x = 10.8
A one-day ticket to Disneyland is $210. California sales tax is 6%. What is the sales tax for the ticket?
What is $12.60.
.06 X 210 = 12.60
What % of 100 is 40?
What is 40%
40/100 = .40 or 40%
What is 15% of 80
What is 12
10% of 80 is 8 so, 5% of 80 is 4
8 + 4 = 12