Comparing Whole Numbers in Words

This lesson teaches how to compare whole numbers written in words by examining each group of digits separately. Using the example of 47,000 and 47,400, the lesson demonstrates starting from the left, comparing groups, and converting to base 10 numerals for clarity. The key takeaway is to identify differences in groups and compare them numerically.

What is the first step in comparing whole numbers written in words?

• Convert them to base 10 numerals immediately.

• Read the numbers in groups from right to left.

• Read the numbers in groups from left to right.

• Ignore the thousands group and focus on the ones group.

In the example given, what is the difference between the two numbers 47,000 and 47,400?

• Both groups are the same.

• The thousands group is different.

• The numbers are equal.

• The ones group is different.

Why is 47,400 greater than 47,000?

• Because 47,400 has more digits.

• Because the thousands group is larger.

• Because the ones group in 47,400 is larger.

• Because 47,000 is not a valid number.

What should you do if the thousands group in two numbers is the same?

• Compare the ones group.

• Convert them to fractions.

• Add the numbers together.

• Ignore the ones group.

What is the final step in comparing numbers written in words?

• Ignore the differences.

• Write them in base 10 numerals and compare.

• Add them together.

• Convert them to fractions.