Grades 4–5
Decimal Place Value
Ten decimals to the hundredths and thousandths: name the digits, write in expanded form and compare.
Math worksheet · Place value and number decomposition
Build the Biggest Number
Eight sets of digit cards. Kids arrange them to make the greatest and the least number they can.
- Grade level
- Grades 3–4
- Time
- About 20 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Place value, Expanded form, Comparing and ordering numbers, Rounding
What kids do
“Use every card once. Make the biggest number you can, then the smallest.”
Teacher tip
Hand out real digit cards. Kids move them around until they convince themselves, and then write it down.
How to use it
- Read each number out loud as a class so kids hear the place names.
- Let kids use a place value mat or a folded paper chart under their sheet.
- Do the first problem together under a document camera, then let kids finish on their own.
Watch for
Rounding the wrong digit. Have kids underline the place they are rounding to first.
Talk about it
- Why do we round? When is an estimate good enough?
- Which problem was the hardest? What made it hard?
Take it further
Make number riddles: “I have 3 hundreds, no tens and 7 ones.”
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
1st grade
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.
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.
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.
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