Worksheet: Finding Percents Mentally

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In this worksheet, we will practice finding percents mentally by using a fraction or decimals.

Q1:

If Daniel answered 60% of the questions on his quiz correctly, and the quiz had 10 questions, determine the number of questions he answered correctly.

Q2:

Determine the total cost for a shirt if its regular price is $24 and the sales tax is 712%.

Q3:

The value of Scarlett’s car, which was $1,200, has decreased by 15%. What is her car worth now?

Q4:

Given a student answers 50% of the questions on an exam correctly and 10 questions incorrectly, what was the total number of questions on the exam?

Q5:

If there is a 20% discount on a TV set, calculate the percentage by which the sale price must be increased in order to get the original price.

Q6:

By dividing by 4, calculate 25% of 900 mentally.

Q7:

By dividing by 2, calculate 50% of 32 mentally.

Q8:

By dividing by 10 and then multiplying by 3, calculate 30% of 90 mentally.

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