4th Grade Math · Rounding Multi-Digit Numbers
Nearest 10 and 100 Worksheets
Fresh practice, ready to print. Answer key included.
Round numbers such as 4,385 to the nearest 10 and 9,960 to the nearest 100.
Make it yours
Or start with a ready-made version.
How it works: a quick refresher
The rules this worksheet practices, then one problem worked from start to finish.
| Strategy | How it works |
|---|---|
| Find the place | Underline the digit in the place you are rounding to: the hundreds digit for the nearest 100. |
| Look one place to the right | That digit decides. For the nearest 100 it is the tens digit. For the nearest 1,000 it is the hundreds digit. |
| 5 or more rounds up | This page uses half up. 9,950 to the nearest 100 is 10,000. 150 to the nearest 100 is 200. |
| 4 or less stays | 9,940 to the nearest 100 is 9,900. The tens digit 4 keeps the hundreds digit where it is. |
| A 9 can carry | If you round up and the place you are rounding to is 9, that 9 becomes 0 and the next place goes up. 9,960 to the nearest 100 is 10,000. |
Worked example
Round 9,960 to the nearest 100.
- 19,960 is between 9,900 and 10,000.
- 2The tens digit is 6. A digit of 5 or more rounds up.
- 3The hundreds digit is 9, so rounding up carries into the thousands.
- 49,960 rounds to 10,000.
Ready-made versions
Three fixed versions you can link to or share. Each is a PDF with its own answer key.
- Nearest 10 and 100 Worksheets, version 1Worksheet PDFAnswer key PDF
- Nearest 10 and 100 Worksheets, version 2Worksheet PDFAnswer key PDF
- Nearest 10 and 100 Worksheets, version 3Worksheet PDFAnswer key PDF
Grade level and standard
Written for 4th grade math (place value) and aligned to CCSS 4.NBT.A.3. It also works as review in later grades.
Common questions
- Is there an answer key?
- Yes. Every worksheet has a matching answer key with each answer worked on the same grid or layout as the question. The worksheet code printed at the bottom of each page pairs a sheet with its key.
- Which way does a 5 go?
- Up. 65 to the nearest 10 is 70, and 9,500 to the nearest 1,000 is 10,000. Some textbooks call this rounding half up.
- Why is 9,960 to the nearest 100 equal to 10,000 and not 9,900?
- The tens digit is 6, so the hundreds digit rounds up. That hundreds digit is 9, and 9 plus 1 carries. 9,900 would be the answer if the tens digit were 4 or less.
- How many different versions are there?
- About a million per skill. Each time you press the button the problems are generated fresh, so you can print a different version for every student, a retake, or another night of practice.
- Are the worksheets free?
- Yes. They are free to print and copy for your home or classroom, with no sign-up.
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