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Simple interest: find the interest

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

Use interest = principal × rate × time, with the rate as a percent per year.

  1. $400 is invested at 5% simple interest per year for 2 years. How much interest is earned?
  2. $500 is invested at 2% simple interest per year for 2 years. How much interest is earned?
  3. $400 is invested at 2% simple interest per year for 1 year. How much interest is earned?
  4. $600 is invested at 2% simple interest per year for 1 year. How much interest is earned?
  5. $500 is invested at 6% simple interest per year for 4 years. How much interest is earned?
  6. $800 is invested at 3% simple interest per year for 3 years. How much interest is earned?
  7. $1100 is invested at 6% simple interest per year for 4 years. How much interest is earned?
  8. $900 is invested at 2% simple interest per year for 1 year. How much interest is earned?
  9. $2500 is invested at 4% simple interest per year for 3 years. How much interest is earned?
  10. $1300 is invested at 2% simple interest per year for 2 years. How much interest is earned?
  11. $1300 is invested at 4% simple interest per year for 3 years. How much interest is earned?
  12. $2000 is invested at 5% simple interest per year for 1 year. How much interest is earned?
  13. $3100 is invested at 8% simple interest per year for 5 years. How much interest is earned?
  14. $4100 is invested at 2% simple interest per year for 2 years. How much interest is earned?
  15. $4300 is invested at 8% simple interest per year for 3 years. How much interest is earned?
  16. $5000 is invested at 3% simple interest per year for 2 years. How much interest is earned?
  17. $9100 is invested at 1% simple interest per year for 7 years. How much interest is earned?
  18. $9300 is invested at 6% simple interest per year for 4 years. How much interest is earned?
  19. $6400 is invested at 1% simple interest per year for 3 years. How much interest is earned?
  20. $4100 is invested at 2% simple interest per year for 7 years. How much interest is earned?
More free practice: fieldbooklearning.com/practice/grade-7/simple-interest-find-the-interest/

Play it as a quiz game

20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

  1. Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Simple interest: find the interest

  1. $40.00
  2. $20.00
  3. $8.00
  4. $12.00
  5. $120.00
  6. $72.00
  7. $264.00
  8. $18.00
  9. $300.00
  10. $52.00
  11. $156.00
  12. $100.00
  13. $1240.00
  14. $164.00
  15. $1032.00
  16. $300.00
  17. $637.00
  18. $2232.00
  19. $192.00
  20. $574.00