Rounding Whole Numbers Themed Math Worksheets

Download Rounding Whole Numbers (Tens and Hundreds) (Sea Animals Themed) Worksheets

Click the button below to get instant access to these premium worksheets for use in the classroom or at a home.

This worksheet can be edited by Premium members using the free Google Slides online software. Click the Edit button above to get started.

Download free sample

Not ready to purchase a subscription yet? Click here to download a FREE sample of this worksheet pack.

Definition

Rounding numbers is the process of making a number simpler but keeping its value close to what it was. The result is an estimated value (not the exact or actual) and is easier to understand but less accurate.

Summary

We are rounding numbers is in our everyday lives without even realizing it. For example, your friend asks you how many pages of worksheets were you able to finish last week? You might say that you finished about 20 pages. It may be 15 or 22, but you know you finished about 20 pages, so you round to the nearest ten.

Is 12 closer to 10 or 20?
Number 12 is between 10 and 20 on the number line. As you can see, 12 is closer because it is only 2 steps away from 10 and 8 steps away from 20. So, we round down 12 to 10.

Step 1: Identify and underline the rounding digit (tens digit) to avoid confusion when rounding large numbers.

Step 2: Look at the digit in the one’s place.
Step 3: Follow the rounding rules.

If the digit in the ones place is 0, 1, 2, 3, or 4, you need to round down the number. To do it, copy the rounding digit.
If the digit in the ones place is 5, 6, 7, 8, or 9, you need to round up the number. To do it, add 1 to the rounding digit.

Step 4: Change all the digit/s to its right to zero.
Step 5: All the digit/s to the left remain the same.

Rounding Whole Numbers (Tens and Hundreds) (Sea Animals Themed) Worksheets

This is a fantastic bundle which includes everything you need to know about Rounding Whole Numbers across 21 in-depth pages. These are ready-to-use Common core aligned 3rd and 4th Grade Math worksheets.

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.