Free printable practice
Adding Tens Practice Activities
Printable maths drills that help children add 10 and other tens by using place value, number patterns, and mental addition.
Practice that builds confidence
What children practise
These Adding Tens practice activities help children become confident with addition facts involving 10, 20, 30 and other multiples of ten. They practise seeing tens as groups, not as single digits to count one by one.
The printable worksheets include focused maths drills with clear sums, pattern-based practice and space to work neatly. Children strengthen mental addition, place value understanding and accuracy with common adding-tens problems.
Adding tens is an important bridge between basic addition facts and larger mental maths. Children learn that adding 10 increases the tens place while the ones place often stays the same, as in 24 + 10 = 34. They also practise adding multiples of ten, such as 30 + 40 or 56 + 20, by thinking in groups of ten.
How the skill develops
Practice usually begins with sums using full tens, for example 10 + 20 or 50 + 30. Children then move to adding a ten to a two-digit number, and later to adding several tens. This progression builds confidence because the pattern is visible: 18, 28, 38, 48. Number lines, ten-sticks, place value charts and repeated oral counting by tens all support the same idea.
A simple parent routine
At home, start with five quick oral questions: “What is 27 plus 10?” or “Add 30 to 45.” Ask your child to say what changed: the tens, the ones, or both. Then complete one short worksheet section. End by asking your child to make two new adding-tens sums for you to solve. This keeps practice active and checks whether the pattern is understood.
Classroom uses
Teachers can use these sheets for morning maths drills, revision after place value lessons, small-group support, or maths centres. The pages also work well for quick checks before moving to two-digit addition with regrouping. Pair work is useful: one child solves, the other explains the tens jump.
Common errors to watch for
Some children add the ten to the ones digit and write answers such as 24 + 10 = 25. Others count forward by ones, which is slow and often leads to slips. If a child is unsure, return to a place value chart: 24 has 2 tens and 4 ones; adding 1 ten makes 3 tens and 4 ones.
Free printable PDF download
Use this adding tens worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
The iBloom adding-tens worksheets give repeated, focused practice without mixing in too many other skills too soon. A child-friendly strategy is: “Look at the tens, add the tens, keep the ones steady when you can.” This simple language helps children solve faster while still understanding the maths.
Helpful answers
Frequently asked questions
What does adding tens mean?
Adding tens means adding 10, 20, 30 or another multiple of ten to a number. Children learn to think in groups of ten instead of counting every single number.
How can I explain 34 + 20 to my child?
Show that 34 has 3 tens and 4 ones. Adding 20 means adding 2 more tens, so the number becomes 5 tens and 4 ones, which is 54.
Should children memorise these answers?
Fluency is helpful, but children should first understand the place value pattern. Once they see how the tens change, the facts become easier to remember.
What common mistake happens when adding 10?
A common mistake is changing the ones digit instead of the tens digit, such as writing 24 + 10 = 25. Using a place value chart can correct this quickly.
Can these worksheets support mental maths?
Yes. Adding tens is a key mental maths skill because children learn to make quick tens jumps, such as 47 to 57 to 67, without written working each time.
Is this adding tens worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this adding tens worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this adding tens worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.