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Adding 6 within 20 worksheets Grade 1

Add 6 using doubles: 6 + 6 = 12, so 6 + 7 is one more.

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How to do it

Use doubles: 6 + 6 = 12, so 6 + 7 is one more.

6+6=126 + 6 = 12a double

Example problems

  1. 6+5=6 + 5 =
  2. 2+6=2 + 6 =
  3. 12+6=12 + 6 =
  4. 7+6=7 + 6 =

Addition facts within 20

  1. Adding 4 within 20
  2. Adding 5 within 20
  3. Adding 6 within 20
  4. Adding 7 within 20
  5. Adding 8 within 20
  6. Adding 9 within 20
  7. Doubles and near doubles
  8. Teen numbers plus ones
  9. All addition facts to 20
  10. Adding three numbers