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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 532 · 40 sums
TalentJR

The method (Count on): Start with the bigger number. Count on the smaller number, one finger at a time. For a missing number (8 + ? = 15), count on from 8 up to 15, or take away: 15 − 8.

NameDateTime takenScore ___ / 40
  1. 1.There are 8 pink balloons and 11 red balloons. How many balloons are there in all?
  2. 2.There are 5 pink crayons and 8 blue crayons. How many crayons are there in all?
  3. 3.Riya has 8 pencils and gets 3 pencils more. How many pencils does Riya have now?
  4. 4.17 + ? = 18
  5. 5.Riya has 4 balls and gets 11 balls more. How many balls does Riya have now?
  6. 6.9 + 3 =
  7. 7.8 + 9 =
  8. 8.8 + 6 =
  9. 9.4 + 3 + 8 =
  10. 10.4 + 8 =
  11. 11.Pooja has 3 mangoes and gets 11 mangoes more. How many mangoes does Pooja have now?
  12. 12.Karan has 5 balls and gets 7 balls more. How many balls does Karan have now?
  13. 13.6 + ? = 11
  14. 14.There are 10 blue balls and 8 yellow balls. How many balls are there in all?
  15. 15.? + 6 = 10
  16. 16.Karan has 11 laddoos and gets 6 laddoos more. How many laddoos does Karan have now?
  17. 17.10 + 3 =
  18. 18.There are 4 yellow flowers and 7 red flowers. How many flowers are there in all?
  19. 19.5 + 5 + 8 =
  20. 20.4 + 7 + 1 =
  21. 21.There are 6 green crayons and 5 red crayons. How many crayons are there in all?
  22. 22.There are 5 blue beads and 3 green beads. How many beads are there in all?
  23. 23.Riya has 5 flowers and gets 3 flowers more. How many flowers does Riya have now?
  24. 24.Saanvi has 3 pencils and gets 3 pencils more. How many pencils does Saanvi have now?
  25. 25.5 + ? = 8
  26. 26.There are 4 pink kites and 4 white kites. How many kites are there in all?
  27. 27.Pooja has 7 laddoos and gets 8 laddoos more. How many laddoos does Pooja have now?
  28. 28.There are 4 red flowers and 12 pink flowers. How many flowers are there in all?
  29. 29.? + 1 = 3
  30. 30.4 + 5 =
  31. 31.10 + 8 =
  32. 32.7 + 3 + 8 =
  33. 33.4 + 7 + 3 =
  34. 34.There are 5 green balloons and 9 white balloons. How many balloons are there in all?
  35. 35.3 + ? = 20
  36. 36.5 + 6 + 8 =
  37. 37.2 + 15 =
  38. 38.There are 7 red flowers and 4 yellow flowers. How many flowers are there in all?
  39. 39.11 + 4 =
  40. 40.There are 8 blue beads and 11 green beads. How many beads are there in all?

Answer key

  1. 19
  2. 13
  3. 11
  4. 1
  5. 15
  6. 12
  7. 17
  8. 14
  9. 15
  10. 12
  11. 14
  12. 12
  13. 5
  14. 18
  15. 4
  16. 17
  17. 13
  18. 11
  19. 18
  20. 12
  21. 11
  22. 8
  23. 8
  24. 6
  25. 3
  26. 8
  27. 15
  28. 16
  29. 2
  30. 9
  31. 18
  32. 18
  33. 14
  34. 14
  35. 17
  36. 19
  37. 17
  38. 11
  39. 15
  40. 19

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