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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.

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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.$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.3 × $1 = $3 more
  • B.$50 + $1 = $51
  • C.$50 × 3 = $150
2.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 + $5 = $405
  • C.$400 ÷ $100 = 4; 4 × $5 = $20; 2 × $20 = $40
3.Carlos saves $200 in an account that pays $3 a year for every $100. How much interest does he earn in one year?
  • A.$3 × 100 = $300
  • B.$200 + $3 = $203
  • C.$200 ÷ $100 = 2; 2 × $3 = $6
4.Why does money left in a savings account longer earn more interest?
  • A.Old money is worth less
  • B.Interest is paid for each year the money stays
  • C.Banks forget to charge fees
5.A savings account pays $2 a year for every $100 saved. How much interest does $300 earn in one year?
  • A.$300 + $2 = $302
  • B.$2 × 100 = $200
  • C.$300 ÷ $100 = 3; 3 × $2 = $6
6.Why does a bank pay interest on savings?
  • A.The law says banks must give money away
  • B.Interest is a prize for walking in
  • C.It lends the money to borrowers and charges them interest
7.Lena's $100 earns $5 interest in a year. She leaves it all in the account. How much does she have after one year?
  • A.$100 − $5 = $95
  • B.$100 × 5 = $500
  • C.$100 + $5 = $105
8.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

LessonPrint · D2.Eco.10.3-5 · Set 3 · free to copy for classroom use

Answer key — How Much Interest Will It Earn?

Set 3. Prints on its own sheet.

  1. 1.3 × $1 = $3 more
  2. 2.$400 ÷ $100 = 4; 4 × $5 = $20; 2 × $20 = $40
  3. 3.$200 ÷ $100 = 2; 2 × $3 = $6
  4. 4.Interest is paid for each year the money stays
  5. 5.$300 ÷ $100 = 3; 3 × $2 = $6
  6. 6.It lends the money to borrowers and charges them interest
  7. 7.$100 + $5 = $105
  8. 8.$80 ÷ $20 = 4; 4 × $1 = $4

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