Simple Interest Worksheets

Using this page

Find the simple interest using interest = principal × rate × time ÷ 100. Principals, rates and times are chosen so every answer is a whole number of rupees. Simple interest appears in Class 7 and Class 8 maths in India (NCERT) and in Year 8 and Year 9 financial maths in Australia.

Tips

• Show the working, even when the answer seems obvious; it makes mistakes easy to spot.
• Check each answer: put it back into an equation, or estimate before working out.
• Start with the easier setting and move up once most answers are right.
• Mix one older sheet into each week so earlier skills stay fresh.

Worked example

Principal ₹2,000, rate 5% a year, time 3 years. Interest = 2000 × 5 × 3 ÷ 100 = ₹300.

Common mistakes

Using the time in months when the rate is per year.

Forgetting to divide by 100 at the end.

How to use this generator

Choose the options above the sheet: the number of questions and the settings for this kind of worksheet. Every change makes a new sheet straight away, and New worksheet gives a different set of questions with the same settings.

Each sheet has a worksheet number printed at the top. Type the same number later, or keep the page link, to print exactly the same questions and answer key again. Leave Answer key page ticked to print the answers on a second page, then press Print. Every printed page carries the makekite logo and web address.

Common questions

What is the total amount?
Add the interest to the principal. These sheets ask for the interest only.

Can I make the sheet harder?
Yes. Use the options above the sheet: more digits, a harder level, brackets or negative numbers where they are offered.

Can I print the same worksheet again?
Yes. Note the worksheet number printed at the top, or keep the link in your browser's address bar, which ends with that number. Entering it later gives the same questions and answers.

Is it free?
Yes. There is no sign-up, and nothing you choose is sent anywhere: the sheets are made in your browser.