Home > Middle School > Quizzes > Grades 6, 7 and 8 - Math - Middle School - Business Math - Calculating Interest Per Year
Grades 6, 7 and 8 - Math - Middle School - Business Math - Calculating Interest Per Year
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Avg score: 5% Most missed: “$600.00 at 5.2% for 10 years.”

Calculation of interest is used in: savings accounts, car loans, mortgages, credit cards, student loans...  

The formula: I = PRT (interest equals principal, interest rate and time)

Interest is additional money earned on money that is either borrowed or that is in savings.  

Grades 6, 7 and 8 - Math - Middle School - Business Math - Calculating Interest Per Year
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20 Questions

1. $9,300.00 at 9.25% for 5 years.
2. $12,250.00 at 5.465% for 5 years.
3. $3,511.00 at 7.13% for 7 years.
4. $64,725.00 at 8% for 20 years.
5. $900.00 at 3.85% for 10 years.
6. $1,519.25 at 4.87% for 3 years.
7. $50.00 at 3.5% for 1 year.
8. $600.00 at 5.2% for 10 years.
9. $125,000.00 at 6.75% for 30 years.
10. $2,950,000.00 at 4.05% for 28 years.
11. $2,200.00 at 4.15% for 4 years.
12. $2,450.19 at 2.37% for 7 years.
13. $3,214.00 at 5.65% for 12 years.
14. $216.49 at 12.5% for 3 years.
15. $5,000.00 at 9% for 15 years.
16. $16,435.75 at 5.275 for 6 years.
17. $39,333.33 at 6.23% for 17 years.
18. $10.00 at 26% for 2 years.
19. $435.00 at 2.83% for 2 years.
20. $34,900,500.00 at 2.97% for 30 years.