Breaking Apart Numbers Worksheet
This breaking apart numbers worksheet lets kindergarten students count domino dots and write two parts that make 7, 8, 9 and 6. An answer key is included for fast, easy checking.
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About this resource
Description
Our Breaking Apart Numbers Worksheet helps kindergarten students see that one number can be split into two smaller parts in more than one way. Using this breaking apart numbers worksheet, children count the dots on each side of a domino and write an addition sentence such as 7 = 4 + 3. This early decomposing skill builds number sense and gets young learners ready for addition and subtraction facts within 10.
The worksheet uses dominoes as a friendly counting tool. In Part A, students count both halves of four dominoes to break apart 7 and 8 two different ways, then write the two parts in the boxes. In Part B, one half of each domino is empty, so students draw more dots to make the number and write the missing part. Children can work on their own, with a partner, or in a small group, and a full answer key makes checking quick.
What’s Included
- One printable breaking apart numbers worksheet (PDF)
- Part A: four domino problems that break apart 7 and 8 two ways
- Part B: two draw-the-dots problems with a missing part
- A complete answer key
Why This Worksheet Helps Kids
- Dominoes give children a concrete picture of two parts that make one whole.
- Showing the same number two ways builds flexible thinking about numbers.
- Drawing the missing dots connects counting, adding and writing number sentences.
Ideas for Teachers and Parents
Before the worksheet, hand out real dominoes and ask children to find every domino that totals 7. After they finish, have them break apart 9 or 10 with counters and record each way they find. This kindergarten addition worksheet also works well as a quick math center, a morning warm-up, or a homework review for students who need extra practice with number partners.
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