Hands-On
How do we use a number line to round larger numbers?
Goal:
Goal:
Practice!
Goal: Use number lines and benchmark numbers.
Can you use a number line to round large numbers? You will need a pencil, cereal, and these number lines for the next questions.
Hands-On
Let’s round 996. We need to pick our benchmark numbers. Which ones did you choose? Write them under a number line on your page.
996 is between 900 and 1,000. We will use the whole tens from 900 to 1,000.
996 is between two whole tens. These are our benchmark numbers. Which two benchmark numbers did you choose? Put a piece of cereal on the line above each benchmark number.
996 is between 990 and 1,000. We can draw 9 lines between 990 and 1,000 to help us find 996. Put a dot on your number line above 996. Your number line should look like this:
Which piece of cereal is closest to 996? Type your answer below.
You’re right! 996 rounded to the nearest ten is 1,000. 1,000 is the closest benchmark number.
Sorry, that’s not right. 996 rounded to the nearest ten is 1,000. 1,000 is the closest benchmark number.
Great job rounding! Use this page to practice using a number line to round. When you are done, turn in your assignment to your teacher with your Weekly Written Work.
Number Line Rounding