1st Grade Core Skills Worksheets
50 printable 1st Grade math worksheets on Core Skills. 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: tens and ones, adding and subtracting within 20, number sense and a story problem on one page.
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 →
Choose a worksheet below, then open the large preview to zoom.
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.
Included in All Access — $39/month for every child in the household, cancel anytime.
Members can add these sheets to a workbook of their own: My Workbooks.
All 50 worksheets in this set
Core Skills Practice, numbered 1 to 50. The free ones open as PDFs.
Teaching Core Skills
What it is
Tens and ones blocks to read, four additions and four subtractions within 20, ten more and ten less, greater than and less than, and a story problem.
When a child is ready
Use it once facts within 20 and tens and ones have each been practiced.
If they struggle
A review shows what needs more practice. Find the one section with the most mistakes and return to that skill's own set.
Worksheet preview
The whole page is fitted when opened. Use +/−, click the page, or pinch to inspect details.
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