8 skills · answer key on every sheet
Kindergarten Math Worksheets
Every sheet below prints on plain letter paper and comes with its answer key on the second page. The problems are checked against the standard on the label — a sheet labeled for regrouping only contains problems that actually require regrouping.
1. Addition Within 10
Adding two numbers with a total no greater than 10.
When: Late kindergarten. Fluency within 10 is the kindergarten end-of-year goal.
Watch for: Relying on fingers for every problem well past the point where the facts could be recalled — accurate, but slow enough to stall later work.
10 sets · 20 problems each
Next: Subtraction within 10, then number bonds.
2. Addition Within 5
Joining two small groups and naming the total, with sums no greater than 5.
When: Mid-kindergarten, usually alongside counting objects.
Watch for: Counting the first group again from one instead of counting on. For 3 + 2 a child restarts at "one, two, three" rather than starting at three.
10 sets · 10 problems each
Next: Addition within 10.
3. Comparing Numbers
Deciding which of two numbers is bigger or smaller, up to 10.
When: Kindergarten, once counting to 10 is secure.
Watch for: Choosing the number that looks bigger on the page, or the one that comes first, instead of thinking about how many.
10 sets · 20 problems each
Next: Addition within 5.
4. Counting 11 to 20
Counting past ten, where the number names stop being predictable.
When: Second half of kindergarten.
Watch for: "Eleven, twelve, thirteen…" is memorized as a song, so children write 11 as "110" — they hear "one, one" and write both digits separately.
10 sets · 20 problems each
Next: Number bonds to 10, which turn counting into arithmetic.
5. Counting to 10
Saying and writing the numbers 1 to 10 in order, and knowing which number comes next.
When: The first half of kindergarten, often before children can write the numerals neatly.
Watch for: Reciting "one two three" fluently but losing track when counting real objects — the words run ahead of the pointing finger.
10 sets · 20 problems each
Next: Counting 11 to 20, where the teen names stop matching the pattern.
6. Number Bonds to 10
Knowing every pair that makes 10: 1 and 9, 2 and 8, 3 and 7, and so on.
When: End of kindergarten. This is the single most useful fact set in early elementary math.
Watch for: Treating each pair as a separate fact to memorize, instead of noticing that as one part goes up, the other goes down.
10 sets · 20 problems each
Next: Addition within 20, where making ten becomes a strategy.
7. Subtraction Within 10
Taking away from a starting number of 10 or less.
When: Late kindergarten.
Watch for: Counting down and including the starting number, so 8 − 3 becomes 6 — the child counts "eight, seven, six" for three steps instead of counting back three from eight.
10 sets · 20 problems each
Next: Number bonds to 10.
8. Subtraction Within 5
Taking a small amount away and naming what is left, starting from 5 or less.
When: Mid-kindergarten, shortly after addition within 5.
Watch for: Reading 5 − 2 as 2 − 5 and answering 3 by chance, then reading 2 − 5 the same way. The order of the numbers is not yet felt as meaningful.
10 sets · 10 problems each
Next: Subtraction within 10.
Common Core State Standards © 2010 National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.