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In this lesson, we will learn how to find percents mentally by using a fraction or decimals.
By dividing by 10 and then multiplying by 3, calculate
of 90 mentally.
Determine the total cost for a shirt if its regular price is $24
and the sales tax is
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?
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.
If Fares answered
of the questions on his quiz correctly, and the quiz had 10 questions,
determine the number of questions he answered correctly.
The value of Farida’s car, which was
, has decreased by
. What is her car worth now?
By dividing by 4, calculate
of 900 mentally.
By dividing by 2, calculate
of 32 mentally.
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