2nd Grade 100 More, 100 Less Worksheet
Find 100 more and 100 less than a number by adding or removing one hundred-flat.
- Homework
- Morning Work
- Centers
- Review
- Intervention
Download the Free Printable PDF
No sign-up required. Clean, low-ink US Letter format.
- Grade
- 2nd Grade
- Subject
- Math
- Skill
- Place Value
- Topic
- 100 more and 100 less
- Difficulty
- Standard
- Time
- 12 minutes
- Pages
- 2 (incl. answer key)
- Format
- Printable PDF (US Letter)
- Answer key
- Included
- Best for
- homework, morning work, centers, review, intervention
Worksheet details
What This Worksheet Practices
Students will find 100 more and 100 less than a three-digit number by changing the hundreds digit.
- Finding 100 more than a number
- Finding 100 less than a number
- Seeing that only the hundreds digit changes
Worksheet Preview
Adding 100 only changes the hundreds
Just like adding ten changes only the tens digit, adding 100 changes only the hundreds digit. So 234 + 100 = 334 - the tens and ones don’t move. Seeing it with a hundred-flat makes “100 more” and “100 less” instant mental math.
How to use it
Start with the base-ten blocks: 100 more is one more flat, 100 less is one fewer. Then do it from the number alone - change the hundreds digit, keep the rest. Builds on 10 more, 10 less and place value to the hundreds.
👩🏫 Teacher note
Use base-ten blocks: 100 more means one more hundred-flat. Only the hundreds digit changes - the tens and ones stay the same.
🏠 Parent note
To add 100, add one to the hundreds digit: 234 becomes 334. The other digits stay the same.
Common Mistakes to Watch For
- Changing the tens or ones digit instead of the hundreds
- Counting by ones to add 100
Answer Key
Each answer shows the new number.
⬇ Download Answer Key (PDF)Related Worksheets
Place Value: Hundreds, Tens, and Ones Worksheet
Read the hundreds flats, tens rods, and ones units, then write the three-digit number they show.
Blank Place Value Chart (Printable)
A reusable blank place value chart with Hundreds, Tens, and Ones columns — print as many as you need.
Expanded Form Worksheet
Write each number in expanded form — the hundreds, plus the tens, plus the ones.
Value of the Underlined Digit Worksheet
Write the value of the named digit in each number - is it worth ones, tens, or hundreds?
Frequently Asked Questions
Is this worksheet free to download?
Yes. You can download and print this worksheet for free, with no sign-up required.
Does it come with an answer key?
Yes — a complete answer key is included.
Original & reviewed. Every worksheet is created in-house from a grade-level skill brief, checked for a correct answer key, and reviewed for grade-appropriateness. Our editorial policy.