Expanded Form
Write each number as hundreds + tens + ones. Then go the other way.
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This is sheet #41324601.
How to do it
- Read the number.
- Write what each digit is worth, joined with plus signs.
- On the bottom half, put the parts back together.
Teaching tip
The zeros count. 405 is 400 + 0 + 5. This sheet is aligned with Common Core 2.NBT.A.1.
About this worksheet
Write numbers as hundreds + tens + ones, then go back from expanded form to the number.
What kids practice
In a three-digit number like 346, the 3 means 3 hundreds, the 4 means 4 tens and the 6 means 6 ones. Second graders learn to see a number in all its forms: blocks, a quick drawing, digits, expanded form (300 + 40 + 6) and words (three hundred forty-six). They also learn that a 0 holds a place, and use place value to compare numbers.
Watch for
- Writing 300406 for three hundred forty-six, by writing each part as you hear it.
- Leaving out the 0 in numbers like 405, so it turns into 45.
- Comparing only the last digits, or thinking the number with more big digits is bigger.
It's free to print, with Fewer, Standard or More on the page and an answer key. See the full place value to 1,000 guide for 2nd grade.
More sheets in this set
- See it all
1. Place Value ChartOne number shown with blocks, digits, expanded form and words, plus why a 0 holds a place. 
2. Count Hundreds, Tens and OnesBase-ten blocks with hundred squares, ten rods and ones, with a place value chart to fill in.
3. Draw the NumberKids show each number with a quick drawing, the way they will sketch numbers on their own.
5. Number Words to 1,000Match number names and numbers to 1,000, both ways.
6. What Is the Digit Worth?Find the value of one digit in a three-digit number.
7. Compare Three-Digit NumbersCompare pairs of three-digit numbers, many with the same hundreds or tens so kids look past the first digit.