Free worksheets · Kindergarten
Stacked Addition Within 10 Worksheet
Add two numbers stacked in a column, like 2 over + 7, and write the sum under the line.
Free printable
Stacked Addition Within 10
8 questions, one page, US Letter. Print it and do it on paper.
On the sheet: Add numbers stacked in a straight column.
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About this worksheet
Stacked addition puts one number above the other with the plus sign on the left and a line underneath. The sum is written below the line. Every sum on this sheet is 10 or less.
The facts are the same as on a line; only the layout changes. Seeing a fact both ways now makes the column format feel familiar long before a child adds bigger numbers in columns.
A worked example
3 + 4, stacked
- Read the top number: 3.
- Read the number with the plus sign: 4.
- Start at 4 and count on 3: 5, 6, 7.
- Write 7 under the line, straight below the other numbers.
Answer: 7
The common mistake
What it looks like: Copying one of the numbers under the line, or subtracting when the numbers are stacked.
Why it happens: A child who has seen stacked subtraction may not look at the sign on the left.
How to fix it: Before solving, touch the sign and say it: "plus, so the answer gets bigger."
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 Stacked Addition Within 10
- Tue What they missed, back again
- Wed The next step, when they’re ready
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