Addition within 10 worksheets
Addition within 10 for kindergarten and grade 1: 27 facts, ten-frame pictures to count, and missing numbers like 3 + ___ = 7.
Download the free addition within 10 worksheet (PDF)
Addition within 10 worksheet
What’s on the worksheet
- 45 questions on addition within 10, sized for US Letter paper
- 2 pages of questions plus an answer key on the last page
- Written for kindergarten and grade 1, matching Common Core K.OA.A.2, K.OA.A.5, 1.OA.C.6
- Name and date lines at the top, and room to show the work
Sample questions from this worksheet
- 7 + 0 =
- 3 + 5 =
- 7 + 1 =
- 4 + 3 =
- 2 + 1 =
- 5 + 3 =
Preview the worksheet and answer key
Make a new addition within 10 worksheet
Need another page for extra practice, a retake or a second group in class? The free Mathify Kids test maker builds a fresh addition within 10 worksheet with different numbers every time. Choose how many questions, print it with its own answer key, or let your child take it on screen and see the score straight away.
Addition within 10: a worked example (4 + 5)
- Start with the bigger number: 5.
- Count on 4 more: 6, 7, 8, 9.
- So 4 + 5 = 9.
What each part practices
- Part A (questions 1–27): Facts from 0 + 1 up to 10, mixed so that easy and harder facts alternate. Good for checking which facts are already quick.
- Part B (28–36): Ten-frame pictures with blue and green counters. Your child writes the addition the picture shows, such as 4 + 3 = 7.
- Part C (37–45): Missing numbers like 3 + ___ = 7. These are the first step towards subtraction and number bonds.
The answer key on the last page lists every answer in order, so a grown-up or an older child can mark the sheet in a couple of minutes.
How to use it at home and in class
At home
Keep a ten frame or ten counters nearby for the first few rows, then try a row without them. Ten problems a day works better than a whole sheet at once. Mark them together with the answer key, then ask your child to explain one they got wrong: finding the mistake themselves is where the learning happens.
In class
Use the first row as a warm-up, a full page for independent practice, or five questions as an exit ticket. For a retake or a second group, make a new version with the test maker so every child gets different numbers.
Mistakes to watch for
- Counting both numbers from 1 every time instead of counting on.
- Counting the start number again: 5, 6, 7, 8 for 5 + 4 gives 8 instead of 9.
What to practice before and after addition within 10
- After: number line addition, once this one is mostly right.
- Learn it first: the addition within 10 lesson and the addition chart.
More addition & subtraction worksheets
Last reviewed
Questions parents ask
What should a kindergartener know about addition within 10?
Kindergarten children add within 10 with objects and drawings, find pairs that make 10, and know the facts within 5 quickly (K.OA.A.2, K.OA.A.5).
What grade is this addition within 10 worksheet for?
It is written for kindergarten and grade 1 and matches Common Core standards K.OA.A.2, K.OA.A.5, 1.OA.C.6.
Can I get a different version of this addition within 10 worksheet?
Yes. Use the free Mathify Kids test maker to make a new addition within 10 worksheet with different numbers every time, with its own answer key.