Rounding Decimals to the Nearest Whole Number Using a Number Line

This video tutorial teaches how to round decimals to the nearest whole number using a number line. It explains the concept of a number line and demonstrates rounding with examples, such as 7 7/10 and 5 1/10. The tutorial emphasizes understanding the position of decimals relative to whole numbers and provides a clear method for determining which whole number a decimal is closest to. By the end, viewers will be able to round decimals effectively using a number line.

What is a number line used for?

• To calculate the area of shapes

• To measure the length of objects

• To solve algebraic equations

• To represent and graph numbers

When rounding 7 7/10, which whole number is it closer to?

• 7

• 6

• 8

• 9

Which of the following numbers is less than halfway between 7 and 8?

• 7 7/10

• 7 9/10

• 7 5/10

• 7 4/10

What is the nearest whole number to 5 1/10?

• 7

• 6

• 5

• 4

If a decimal is halfway or greater, to which whole number is it rounded?

• The previous whole number

• The next whole number

• It stays the same

• It is rounded to zero