Tens & Ones Worksheets
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10 problemsMedium
20 problemsHard
20 problemsMixed
30 problemsFree printable tens & ones worksheets with step-by-step answer keys. Every worksheet is uniquely generated so students never see the same problems twice. Topics covered range from count tens in multiples of 10, bundle sticks, group into tens at the easy level through to 3-digit place value, expanded form, digit values in hundreds, regrouping at the advanced level.
What is tens & ones?
Tens and ones form the foundation of place value, where a digit's position determines its mathematical value. In any two-digit number, the left digit represents tens (groups of 10) while the right digit represents ones (individual units). For example, in the number 47, the digit 4 represents 4 tens (40) and the digit 7 represents 7 ones.
Why it matters
Place value understanding enables accurate counting of money — recognizing that 3 dimes and 5 pennies equals 35 cents requires knowing the 3 represents 30 and the 5 represents 5. This concept appears in grocery shopping when calculating totals, sports statistics tracking scores in the hundreds, and time management understanding that 25 minutes means 2 groups of 10 minutes plus 5 individual minutes. Students who master tens and ones develop the foundation for addition with regrouping (carrying), subtraction with borrowing, and multiplication algorithms. The concept extends directly to three-digit numbers where hundreds join tens and ones, forming the basis for understanding larger numbers like 247 as 2 hundreds, 4 tens, and 7 ones. This systematic approach to number structure supports estimation skills and mental math strategies throughout elementary mathematics.
Common mistakes to watch for
- ✗A common error is stating that in 83, the digit 8 is worth 8 instead of 80 — confusing the digit itself with its place value.
- ✗Another mistake involves writing 6 tens and 3 ones as 63 when the problem asks for expanded form, giving 63 instead of 60 + 3.
- ✗Students often reverse digits when building numbers, creating 45 when asked for 4 ones and 5 tens, resulting in 45 instead of 54.
Questions teachers ask
What is the difference between digit value and place value?+
How do you write a number in expanded form?+
Why does zero matter in place value?+
How do you compare the value of digits in different places?+
What comes after mastering tens and ones?+
Pick a difficulty
Click any level to open the generator with that difficulty pre-selected.
Beginner
Generate →- Concepts
- Count tens in multiples of 10, bundle sticks, group into tens
- Range
- 10–90
- Steps
- 2–3 steps
- Example
- How many tens in 40?
Easy
Generate →- Concepts
- Build 2-digit numbers from tens+ones, break apart, coin problems
- Range
- 10–99
- Steps
- 2–4 steps
- Example
- What number has 3 tens and 5 ones?
Medium
Generate →- Concepts
- Digit value, expanded form, identify place, compare digit values
- Range
- 11–99
- Steps
- 2 steps
- Example
- In 47, what is the VALUE of the digit 4?
Hard
Generate →- Concepts
- 3-digit place value, expanded form, digit values in hundreds, regrouping
- Range
- 100–999
- Steps
- 2–3 steps
- Example
- Write 365 in expanded form
Try a sample problem
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Learn the theory → Read our tens & ones guide with worked examples.
Practice online → Interactive tens & ones problems with instant feedback.