1st Grade Addition Facts Worksheets
50 printable 1st Grade math worksheets on Addition Facts. Every sheet has a worked answer key — 50 in all. The first three worksheets are free to download; All Access opens the rest and every answer key.
In Grade 1: adding within 20, making a ten where it helps; the sums decode a secret message.
Practice pages support a program; they are not the lesson. These sheets reinforce Building Number Sense Grade 1, the sequenced K–5 math series from Faith Thinkers. See every program →
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3 of 50 worksheets free · All Access opens the other 47 and all 50 answer keys
The free sheets download from this page as PDFs. Open to everyone.
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All 50 worksheets in this set
Addition Facts Practice, numbered 1 to 50. The free ones open as PDFs.
Teaching Addition Facts
What it is
Eight addition problems with sums to 20. The answers decode a secret message, and a story problem closes the page.
When a child is ready
Ready once the pairs that make 10 are known.
If they struggle
When a sum passes ten, make a ten first: for 8 + 9, give 2 to the 8 and add the 7 that is left. A wrong letter in the message shows which sum to redo.
Worksheet preview
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