Rounding Decimal Numbers to the Nearest Tenth

The video tutorial explains how to round decimal numbers to the nearest 10th. It begins with an introduction to rounding and provides examples of rounding numbers with one decimal place. The tutorial uses a number line to illustrate the general rounding rules, emphasizing the importance of the digit immediately to the right of the 10th place. The video concludes with a summary of the rounding process, highlighting the key steps and rules involved.

What is the purpose of rounding decimal numbers?

• To decrease the value of the number

• To change the number to a fraction

• To make calculations easier

• To increase the value of the number

Which of the following numbers is already rounded to the nearest 10th?

• 43.74

• 43.71

• 43.78

• 43.79

Why is 43.70 considered the same as 43.7?

• Because it is a whole number

• Because the zero represents no value

• Because it is less than 43.71

• Because it is greater than 43.69

What is the first step in rounding 43.78 to the nearest 10th using a number line?

• Identify the two closest benchmarks

• Add the digits together

• Subtract the digits

• Multiply the digits

Which two benchmarks are used to round 43.78 to the nearest 10th?

• 43.5 and 43.6

• 43.8 and 43.9

• 43.6 and 43.7

• 43.7 and 43.8

What is the general rounding rule when the digit to the right is 5 or greater?

• Round up to the next digit

• Round down to the previous digit

• Keep the digit the same

• Change the digit to zero

Where is 43.78 located on the number line between 43.7 and 43.8?

• Closer to 43.8

• Exactly at 43.7

• Closer to 43.7

• Exactly at 43.75

What happens if the number is exactly at the midpoint on the number line?

• Keep the number the same

• Round down to the lesser value

• Round up to the greater value

• Change the number to zero

How do you round 43.74 to the nearest 10th?

• Round down to the previous digit

• Round up to the next digit

• Keep the digit in the 10th place the same

• Change the digit to zero

What did you learn in this lesson?

• How to add decimal numbers

• How to round decimal numbers to the nearest 10th

• How to subtract decimal numbers

• How to multiply decimal numbers