Lesson Worksheet: Finding Percents Mentally Mathematics

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

Naser wants to buy a pair of pants for $22. The clothing store, in which the pair of pants are shown, has a sale of . Naser estimates that he will save of $20 or an amount of $10. Will the amount he saves for the pants be more or less than $10?

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 Khalid answered of the questions on his quiz correctly, and the quiz had 10 questions, determine the number of questions he answered correctly.

By dividing by 4, calculate of 900 mentally.

By dividing by 2, calculate of 32 mentally.

Khalid took a cab to work yesterday. If he left a tip of on the $19.64 fare, determine about how much the tip was.

By dividing by 4 and multiplying by 3, calculate of 600 mentally.

The school football team won of their matches. If they played 10 matches, how many matches did they lose?

According to a survey, about of people prefer dark chocolate over white chocolate. Which of the numbers below is the nearest to the number of people who prefer dark chocolate out of 199 people?