Understanding the Role of Commas in Reading and Writing Numbers in Word Form

This video tutorial teaches how to read and write numbers in word form by understanding the role of commas and place value. It covers the structure of the place value chart, common mistakes like incorrect use of hyphens and 'and', and provides examples of writing large numbers in word form. The tutorial emphasizes the importance of correctly identifying periods and units, and offers practice examples to reinforce learning.

What is the role of commas in writing numbers in word form?

• To denote decimal points

• To add emphasis

• To indicate periods like thousands and millions

• To separate digits

Which of the following is a common mistake when writing numbers in word form?

• Writing numbers in all capital letters

• Inserting a comma between tens and units

• Forgetting to use a hyphen between tens and units

• Using a hyphen between hundreds and tens

When writing the number 256 in word form, where should a hyphen be placed?

• Between 2 and 5

• Between 2 and 6

• No hyphen is needed

• Between 5 and 6

How should the number 15 be written in word form?

• Fif teen

• Fif-teen

• Fifteen

• Fif-teen

What should be inserted at commas when writing large numbers in word form?

• The word 'point'

• The word 'and'

• The unit name like 'million' or 'thousand'

• A hyphen