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Addition within 10 worksheets

Twenty addition problems with sums of 10 or less, made fresh in three versions with answer keys. Stack them for students who line up numbers, or print them on a line.

Addition: within 10

NameDate

Add.

Sheet AFree at teach.peabody.kids

Addition: within 10

NameDate

Add.

Sheet BFree at teach.peabody.kids

Addition: within 10

NameDate

Add.

Sheet CFree at teach.peabody.kids

Answer key

Sheet A

  1. 10
  2. 9
  3. 9
  4. 5
  5. 9
  6. 8
  7. 10
  8. 8
  9. 6
  10. 6
  11. 10
  12. 7
  13. 10
  14. 6
  15. 6
  16. 8
  17. 5
  18. 10
  19. 10
  20. 2

Sheet B

  1. 9
  2. 9
  3. 3
  4. 4
  5. 7
  6. 8
  7. 4
  8. 10
  9. 10
  10. 7
  11. 9
  12. 5
  13. 9
  14. 10
  15. 6
  16. 3
  17. 7
  18. 8
  19. 8
  20. 7

Sheet C

  1. 8
  2. 5
  3. 4
  4. 9
  5. 10
  6. 7
  7. 5
  8. 6
  9. 8
  10. 8
  11. 10
  12. 5
  13. 9
  14. 7
  15. 6
  16. 10
  17. 9
  18. 10
  19. 7
  20. 7
Answer keyFree at teach.peabody.kids

Addition: 20 problems a sheet, 3 versions that do not repeat each other where the numbers allow.

How to use it

  1. Look at the sheet: it is a real, printable sheet. Switch between Sheet A, B and C, or press New numbers (N) for a fresh set.
  2. Change how many problems, how many versions, and whether the key prints. Settings stay in this browser; Share copies a link that rebuilds the same sheets.
  3. Press Print sheet A and key, or Print all. The answer key prints on its own page, so you can keep it back.

Ideas for class

  • Print the stacked layout for students who are learning to write the plus sign and the line, and the on-a-line layout for those who are ready for number sentences in a row.
  • Give a sheet as a two-minute warm-up three days running, and keep the sheet that was best. Students can see their own time improve without comparing themselves to anyone.
  • Pair this with ten frames: have students draw the dots for any problem they miss, then check the sum against the frame.

Related

Questions

Why are there no zero facts on this sheet?

Every number added here is at least 1, so each problem is a real joining of two groups. To include facts with zero, open the sheet in the maker and choose Within 5, which starts from zero.

Is 10 the largest sum on the sheet?

Yes. Every problem has a sum of 10 or less. For sums up to 20, use the addition within 20 sheet, and for a sum of exactly 10 use the Make 10 sheet.

Are the answer keys checked?

Each answer is worked out by the code that wrote the problem, and our tests recompute every answer a second way and compare. Please still look over the key before you grade a class set.

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What this worksheet covers

Addition within 10 is the first set of math facts children are expected to know without counting. Each problem joins two numbers whose total is 10 or less, such as 6 + 3 or 4 + 5, and the sheet draws them from the whole range without repeating a fact within a sheet. The goal is quick recall, not just a correct answer reached by counting on fingers.

Who it is for

Most kindergarten classes work within 5 first and move to 10 over the year. First graders use this sheet to build fluency before the facts to 20. Common Core 1.OA.C.6 asks for fluency with addition and subtraction within 10 by the end of first grade.

Adding two numbers with a sum of 10 or less · Kindergarten and grade 1

A worked example

Take 7 + 2. A student who counts on starts at 7 and says 8, 9. A student with the fact simply knows it is 9. Both get the same answer, but only the second can move on to 7 + 2 + 1 without losing the thread. Ask which way each student used.

Mistakes to watch for

  • Counting both starting numbers, so 4 + 3 becomes 1, 2, 3, 4, 5, 6, 7 starting from one. Teach counting on from the larger number instead.
  • Writing the first number again as the answer. Reading the problem aloud, plus sign included, usually breaks the habit.

Make it your own

This sheet is one setting of the math worksheet generator. Open it there to change the skill, the range of numbers or the heading, or to mix several skills on one sheet.