These activity sheets will give your beginning students an introduction to placing commas in numbers.

Commas can often be used in very large numbers to make them easier to read and interpret. Commas can be placed every three digits to denote gaps of a thousand. There are three data points that contain numbers that we should not add commas to. You should not add commas to serial numbers because it changes their function. Commas are often left out of reference numbers, you will notice this when you get a confirmation number for a hotel stay or plane ticket. Commas are often left out 4-figure formats for the year (such as 2018).

These worksheets explain how to correctly place commas in large numbers, and how to read the result. All numbers have either five or six digits.

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Placing Commas in Numbers Worksheets

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More Thousands Lesson

This worksheet explains how to place a comma in a number. A sample problem is solved.

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More Thousands Lesson and Practice

Students will review how to place a comma in a number. A sample problem is solved and two practice problems are provided.

More Thousands Worksheet

Students will place commas in the numbers and fill in the missing parts. Ten problems are provided.

More Thousands Practice

Students will practice placing commas in the numbers and filling in the missing parts. Ten problems are provided.

More Thousands Drill

Students develop skill placing commas in the numbers and filling in the missing parts. Eight problems are provided.

More Thousands Warm Up

Students will place commas in the numbers and fill in the missing parts. Three problems are provided.