Free worksheets · Grade 2
Add Tens, Then Ones Worksheet
Split the second number into tens and ones, add the tens first, and write the ones left to add in the box.
Free printable
Add Tens, Then Ones
20 questions, one page, US Letter. Print it and do it on paper.
On the sheet: Split the second number into tens and ones. Add the tens to the first number. Write the ones that are left to add in the box.
We email you the link and start your 30 days of BrightPage free. No card. By continuing you agree to the Terms and Privacy Policy.
About this worksheet
Adding tens first is how most people add two-digit numbers in their heads: 58 + 29 is 58 + 20, then 9 more.
Each question writes the first step out (58 + 29 = 78 + ___), so the child sees that the tens are done and only the ones are left.
A worked example
58 + 29 = 78 + ___
- Split the second number: 29 = 20 + 9.
- Add the tens to the first number: 58 + 20 = 78.
- The ones are left to add: 78 + 9.
Answer: 9
The common mistake
What it looks like: Writing the whole second number (29) in the box, or the final total (87).
Why it happens: The child reads the question as a whole sum instead of looking at what has already been added.
How to fix it: Point to the tens already added (78 is 58 + 20), then ask: what part of 29 is still waiting? Only the 9.
Ten minutes a day, on paper. We plan what comes next.
A printed page and a pencil. No screen, no login for your child. Snap a photo when they’re done: AI scores it, and what they missed comes back on the sheets that follow.
- Mon Add Tens, Then Ones
- Tue What they missed, back again
- Wed The next step, when they’re ready
Not ready to start? A free grade 2 printable each week.
One sheet and one practice tip, about once a week. Unsubscribe in one click.