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How Much Interest Will It Earn? is a free printable Grade 3 to Grade 5 social studies worksheet on figuring out simple interest on savings, 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 21 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.

How Much Interest Will It Earn?

D2.Eco.10.3-5

NameDate

Choose the best answer. For math problems, choose the work that gives the right answer.

1.A CD pays $4 a year for every $100. A savings account pays $1 for every $100. How much more does $100 earn in the CD in one year?
  • A.$4 + $1 = $5
  • B.$4 − $1 = $3 more
  • C.$100 + $4 = $104
2.Carlos saves $200 in an account that pays $3 a year for every $100. How much interest does he earn in one year?
  • A.$200 ÷ $100 = 2; 2 × $3 = $6
  • B.$200 + $3 = $203
  • C.$3 × 100 = $300
3.What is an interest rate?
  • A.The number of banks in a town
  • B.The share of the money paid as interest each year
  • C.The cost of a piggy bank
4.$50 in a piggy bank earns $0. $50 in a savings account earns $1 a year. After 3 years, how much more is in the account?
  • A.$50 + $1 = $51
  • B.3 × $1 = $3 more
  • C.$50 × 3 = $150
5.A bank pays 5% interest a year, which is $5 for every $100. How much interest does $100 earn in a year?
  • A.$100 ÷ $100 = 1; 1 × $5 = $5
  • B.$100 ÷ 5 = $20
  • C.$100 + $5 = $105
6.Why does a bank pay interest on savings?
  • A.The law says banks must give money away
  • B.It lends the money to borrowers and charges them interest
  • C.Interest is a prize for walking in
7.An account pays $1 a year for every $20 saved. How much interest does $80 earn in a year?
  • A.$80 + $1 = $81
  • B.$80 − $20 = $60
  • C.$80 ÷ $20 = 4; 4 × $1 = $4
8.An account pays $5 a year for every $100 saved. The interest is paid out each year. How much interest does $400 earn in 2 years?
  • A.4 × $5 = $20
  • B.$400 ÷ $100 = 4; 4 × $5 = $20; 2 × $20 = $40
  • C.$400 + $5 = $405

LessonPrint · D2.Eco.10.3-5 · Set 21 · free to copy for classroom use

Answer key — How Much Interest Will It Earn?

Set 21. Prints on its own sheet.

  1. 1.$4 − $1 = $3 more
  2. 2.$200 ÷ $100 = 2; 2 × $3 = $6
  3. 3.The share of the money paid as interest each year
  4. 4.3 × $1 = $3 more
  5. 5.$100 ÷ $100 = 1; 1 × $5 = $5
  6. 6.It lends the money to borrowers and charges them interest
  7. 7.$80 ÷ $20 = 4; 4 × $1 = $4
  8. 8.$400 ÷ $100 = 4; 4 × $5 = $20; 2 × $20 = $40

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