Addition and subtraction worksheets
Mixed addition and subtraction for grades 1 and 2: 30 facts within 20 with the sign changing every question, missing numbers, and choose the sign to make it true.
Download the free addition and subtraction worksheet (PDF)
Addition and subtraction worksheet
What’s on the worksheet
- 50 questions on addition and subtraction, sized for US Letter paper
- 2 pages of questions plus an answer key on the last page
- Written for grades 1–2, matching Common Core 1.OA.C.6, 1.OA.D.8, 2.OA.B.2
- Name and date lines at the top, and room to show the work
Sample questions from this worksheet
- 3 + 8 =
- 15 − 9 =
- 9 + 8 =
- 16 − 7 =
- 10 + 8 =
- 8 − 7 =
Preview the worksheet and answer key
Make a new addition and subtraction 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 and subtraction 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 and subtraction: a worked example (12 ○ 3 = 9)
- The answer 9 is smaller than 12.
- So something was taken away: the sign is −.
- Check: 12 − 3 = 9.
What each part practices
- Part A (questions 1–30): Facts within 20 where the sign changes every question, so your child has to read each sign before answering.
- Part B (31–42): Missing numbers in addition and subtraction, like 14 − ___ = 8. Each one is a fact family in disguise.
- Part C (43–50): Choose the sign: write + or − in the circle to make 12 ○ 3 = 9 true. A bigger answer means +; a smaller one means −.
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
Ask your child to circle every − sign on the first page before starting. It slows them down just enough to read each sign. 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
- Not reading the sign and adding every question.
- Choosing + when the answer is smaller than the first number.
What to practice before and after addition and subtraction
- Before: subtraction facts. If this sheet is a struggle, go back a step.
- After: 2-digit subtraction, once this one is mostly right.
- Learn it first: the addition and subtraction lesson and the subtraction chart.
More addition & subtraction worksheets
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Questions parents ask
Should addition and subtraction be practiced together?
Yes. Mixed practice makes children read the sign and choose the operation, and every subtraction fact is an addition fact turned around.
What grade is this addition and subtraction worksheet for?
It is written for grades 1–2 and matches Common Core standards 1.OA.C.6, 1.OA.D.8, 2.OA.B.2.
Can I get a different version of this addition and subtraction worksheet?
Yes. Use the free Mathify Kids test maker to make a new addition and subtraction worksheet with different numbers every time, with its own answer key.