Free worksheets · Grade 1
Add Multi-digit Numbers in Columns Worksheet
Add two two-digit numbers in columns, ones first, with a box for each digit.
Free printable
Add Multi-digit Numbers in Columns
12 questions, one page, US Letter. Print it and do it on paper.
On the sheet: Add the ones and write them in the ones box. Add the tens and write them in the tens box.
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About this worksheet
Writing numbers in columns lines up tens under tens and ones under ones, so each column is a small fact a child already knows.
None of these sums need regrouping, so the child can practice the method itself: ones first, then tens, one digit in each box.
A worked example
79 + 10
- Add the ones: 9 + 0 = 9. Write 9 in the ones box.
- Add the tens: 7 + 1 = 8. Write 8 in the tens box.
Answer: 89
The common mistake
What it looks like: Adding across the rows, 7 + 9, instead of down the columns.
Why it happens: Children read left to right, and the numbers are on rows.
How to fix it: Point down each column before adding. The labels above the example (tens, ones) say which way to go.
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 Multi-digit Numbers in Columns
- Tue What they missed, back again
- Wed The next step, when they’re ready
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