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What Credit Card Interest Costs is a free printable Grade 3 to Grade 5 social studies worksheet on what interest costs on a credit card balance, aligned to C3 Framework indicator D2.Eco.10.3-5. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 7 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

What Credit Card Interest Costs

D2.Eco.10.3-5

NameDate

Circle the answer that shows the right work.

1.A bike costs $300. Paying with a card adds $15 in interest. How much does the bike cost in the end?
  • A.$300 + $15 = $315
  • B.$285
  • C.$300
2.Jay owes $100 on a credit card. He is charged $2 interest each month he leaves it unpaid. How much interest does he pay in 3 months?
  • A.$103
  • B.$2
  • C.3 × $2 = $6
3.A card charges $20 of interest a year for every $100 owed. How much interest is charged in a year on a $500 balance?
  • A.$500 ÷ $100 = 5; 5 × $20 = $100
  • B.$20
  • C.$520
4.Jay owes $100 and is charged $2 interest each month. How much does he owe after 3 months with no payments?
  • A.$300
  • B.3 × $2 = $6; $100 + $6 = $106
  • C.$102
5.A card charges $3 interest every month for 12 months. How much interest is that in all?
  • A.12 × $3 = $36
  • B.$15
  • C.$9
6.How can you avoid paying any credit card interest?
  • A.Pay only the smallest amount allowed
  • B.Pay the whole balance by the due date each month
  • C.Never open the bill
7.Does a debit card purchase charge interest?
  • A.Yes, always more than a credit card
  • B.Yes, but only on weekends
  • C.No, because you are spending your own money, not borrowing
8.Mia owes $120 and pays $30 each month, with no new purchases and no interest. How much does she owe after 2 months?
  • A.$90
  • B.$150
  • C.2 × $30 = $60; $120 − $60 = $60

LessonPrint · D2.Eco.10.3-5 · Set 7 · free to copy for classroom use

Answer key — What Credit Card Interest Costs

Set 7. Prints on its own sheet.

  1. 1.$300 + $15 = $315
  2. 2.3 × $2 = $6
  3. 3.$500 ÷ $100 = 5; 5 × $20 = $100
  4. 4.3 × $2 = $6; $100 + $6 = $106
  5. 5.12 × $3 = $36
  6. 6.Pay the whole balance by the due date each month
  7. 7.No, because you are spending your own money, not borrowing
  8. 8.2 × $30 = $60; $120 − $60 = $60

Last reviewed 2026-09-05. Aligned to D2.Eco.10.3-5 of the C3 Framework for Social Studies State Standards.