Indian Number System Worksheets: Commas

Using this page

Practise writing large numbers with Indian commas, which go after the first three digits from the right and then after every two digits: 12,34,567. Choose numbers from five to nine digits (up to crores), and decide whether to start from plain digits, from international commas (1,234,567), or a mix of both and the lakh and crore word tasks. Indian schools teach this from Class 4 and use it again in later classes.

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

4567890. From the right, the first three digits make 890. After that, groups of two: 67 and 45. So the number is 45,67,890. In the international system the same number is written 4,567,890.

Common mistakes

Using international commas out of habit and writing 4,567,890. In the Indian system the commas are 45,67,890.

Dropping a zero or putting a comma in the wrong place after the first three digits. Count three digits from the right first, then twos.

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 difference between the two systems?
Only the commas, and the names. Indian commas go after three digits and then every two, and the places are called thousand, lakh and crore. International commas go after every three digits, and the places are thousand, million and billion.

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.