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Worksheet: Finding Percents Mentally
Q1:
By dividing by 10 and then multiplying by 3, calculate of 90 mentally.
Q2:
Determine the total cost for a shirt if its regular price is $24 and the sales tax is .
Q3:
Given a student answers of the questions on an exam correctly and 10 questions incorrectly, what was the total number of questions on the exam?
Q4:
If there is a discount on a TV set, calculate the percentage by which the sale price must be increased in order to get the original price.
Q5:
If Daniel answered of the questions on his quiz correctly, and the quiz had 10 questions, determine the number of questions he answered correctly.
Q6:
The value of Scarlett’s car, which was , has decreased by . What is her car worth now?
Q7:
By dividing by 4, calculate of 900 mentally.
Q8:
By dividing by 2, calculate of 32 mentally.