Grades 1–2
Regroup Tens and Ones
Eight numbers written three ways: 45 is 4 tens 5 ones, and also 3 tens 15 ones, and 2 tens 25 ones.
Math worksheet · Place value and number decomposition
Draw Tens and Ones
Eight two-digit numbers. Kids draw tens as long sticks and ones as little squares, then write the tens and ones.
- Grade level
- 1st grade
- Time
- About 15 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Place value, Expanded form, Comparing and ordering numbers, Rounding
What kids do
“Draw a long stick for each ten and a small square for each one. Write how many tens and ones.”
Teacher tip
Quick sticks and dots are fine. Ask kids to count their drawing to check.
How to use it
- Build the first number with base-ten blocks before kids write anything.
- Draw a place value chart on the board and keep it up while kids work.
- Do the first problem together under a document camera, then let kids finish on their own.
Watch for
Zeros as placeholders. Kids often write 307 as 37 or three hundred seven as 3007.
Talk about it
- What is this digit worth? How do you know?
- Which problem was the hardest? What made it hard?
Take it further
Have kids find big numbers in the newspaper or a fact book and write them in expanded form.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More place value and number decomposition worksheets
2nd grade
Hundreds, Tens and Ones with Blocks
Six sets of base-ten blocks with hundreds flats, tens rods and ones cubes. Kids count each and write the number.
2nd grade
Count by 10s and 100s from Any Number
Nine number trains that count by tens and hundreds from numbers like 23, 156 and 215. Only one digit changes each time!
Grades 2–3
Round on a Number Line
Eight numbers to mark on a number line between two tens or two hundreds. Kids see which one is closer and round.
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