Worksheet: Estimating Percentage

In this worksheet, we will practice estimating a percentage of a whole and estimating percentages in real-life situations.

Q1:

According to a survey, about 50% 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?

  • A50
  • B190
  • C149
  • D140
  • E100

Q2:

While in Greece, Daniel spent 9 hours and 45 minutes visiting monuments. He spent 20% of the time visiting old temples. Which of the following represents about how much time he spent visiting old temples?

  • A1 h
  • B7 h
  • C11 h
  • D2 h

Q3:

Estimate the following: 21% of 52.

Q4:

Charlotte earned $299 last month translating 2 documents. Given that 20% of the money she earned was from translating the second document, which of the following is the closest to the amount of money Charlotte earned from translating the second document?

  • A$290
  • B$30
  • C$279
  • D$60
  • E$270

Q5:

Chloe invested $6,600 in an account with a yearly interest rate of 5%. In how many years will she have $8,910?

Q6:

Estimate the following: 21% of 50.

  • A10
  • B40
  • C15
  • D30
  • E29

Q7:

Determine the profit Jacob made in a year from depositing $490,000 in a savings account with an annual interest rate of 4.25%.

Q8:

Select the best estimate of the following calculation: 79% of 499.

  • A7
  • B6
  • C4
  • D49
  • E9

Q9:

Last year, 301 students attended a summer camp and 0.7% of them returned this year. Which of the following is closest to the number of students who attended the camp in both years?

  • A9
  • B6
  • C23
  • D3
  • E21

Q10:

A bookmaker predicts that the Giants are expected to win 36.24% games in an NFL season. They are scheduled to play 30 games. Based on the bookmaker’s prediction, estimate how many games the Giants are expected to win.

  • A11 games
  • B25 games
  • C7 games
  • D17 games
  • E8 games

Q11:

Liam took a cab to work yesterday. If he left a tip of 25% on the $19.64 fare, determine about how much the tip was.

  • A$7.00
  • B$5.00
  • C$45.00
  • D$15.00

Q12:

By dividing by 4 and multiplying by 3, calculate 75% of 600 mentally.

Q13:

Jackson is buying a home theater system for $6,175.79. If the sound bar constitutes 28.3% of the total price, determine which of the following is the best estimate of the cost of the sound bar.

  • A$1,200
  • B$1,240
  • C$4,340
  • D$4,800
  • E$1,860

Q14:

Which of the below represents 420% of 58?

  • A𝑛=420×58
  • B58420=𝑛100
  • C𝑛=4.2×58
  • D𝑛=4.2×0.58

Q15:

If Benjamin invests $4,500 in an account that yields a simple interest of a 4%, determine how much money the account will have after 4 years.

Q16:

Estimate 49.25% of 38.

  • A24
  • B15
  • C28
  • D14
  • E19

Q17:

Determine the interest earned on an account, given that an amount of $2,200 is deposited for 8 years and that the interest rate is 6.42% per year.

Q18:

Estimate 0.75% of 401.

  • A37
  • B12
  • C7
  • D3
  • E30

Q19:

If a person spends about 28% of their time sleeping, determine which of the following represents an estimate of how much time that person will spend sleeping in 57 years.

  • A12 years
  • B6 years
  • C37 years
  • D18 years
  • E30 years

Q20:

The following table represents a bank’s different loan packages. Determine, to the nearest cent, the simple interest earned on $3,300 for 6 months.

Time6 months9 months12 months18 months
Rate2.5%2.6%2.9%3.3%

Q21:

Daniel wants to buy a pair of pants for $22. The clothing store, in which the pair of pants are shown, has a sale of 50%. Daniel estimates that he will save 12 of $20 or an amount of $10. Will the amount he saves for the pants be more or less than $10?

  • ALess
  • BMore

Q22:

Mr. Liam put his life savings of $490,000 in a savings account. If he earns $47,040 in simple interest every year, determine the interest rate on his account.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.