Mentally Finding %
Fractions to Percents
Percents to Fractions
Finding the % of a #
Finding the Whole
100
Use mental math to find 10% of 250.
What is 25
100
What percentage is equal to 2/5?
What is 40%
100
What is 15% as a fraction in simplest form?
What is 3/20?
100
20% of 50
What is 10
100
20% of what number is 12?
What is 60
200
Use mental math to find 20% of 80
What is 16
200
What percentage is equal to 3/8?
What is 37.5%
200
What is 48% as a fraction in simplest form?
What is 12/25?
200
25% of 80
What is 20
200
30% of what number is 15?
What is 50
300
Use mental math to find 15% of 60.
What is 9
300
What percentage is equal to 1 and 11/20?
What is 155%
300
What is 8% as a fraction in simplest form?
What is 2/25?
300
62% of 50
What is 31
300
75% of what number is 24?
What is 32
400
Use mental math to find 32% of 800
What is 256
400
What percentage is equal to 3 and 7/8
What is 387.5%
400
What is 125% as a fraction or mixed number in simplest form?
What is 1 and 1/4?
400
110% of 40
What is 44
400
65% of what number is 39?
What is 60
500
Use mental math to find the tip you would give a server if the total bill is $12.40 and you want to leave 15%.
What is $1.86
500
What percentage is equal to 2 and 15/18?
What is 283.3%
500
What is 276% as a fraction in simplest form?
What is 2 and 19/25?
500
250% of 18
What is 45
500
120% of what number is 48?
What is 40
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