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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 622 · 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. 1.19 + 1 =
  2. 2.14 + 2 =
  3. 3.6 + 6 + 2 =
  4. 4.? + 3 = 4
  5. 5.Ananya has 14 laddoos and gets 3 laddoos more. How many laddoos does Ananya have now?
  6. 6.10 + 10 =
  7. 7.6 + 2 + 5 =
  8. 8.6 + 1 =
  9. 9.There are 11 pink balls and 7 green balls. How many balls are there in all?
  10. 10.3 + 3 + 4 =
  11. 11.There are 12 blue flowers and 7 white flowers. How many flowers are there in all?
  12. 12.3 + 17 =
  13. 13.There are 4 green balloons and 16 red balloons. How many balloons are there in all?
  14. 14.9 + 8 =
  15. 15.Pooja has 9 shells and gets 2 shells more. How many shells does Pooja have now?
  16. 16.? + 16 = 19
  17. 17.There are 3 pink beads and 17 blue beads. How many beads are there in all?
  18. 18.There are 11 yellow kites and 5 blue kites. How many kites are there in all?
  19. 19.? + 1 = 6
  20. 20.14 + 1 =
  21. 21.? + 12 = 13
  22. 22.6 + 8 + 4 =
  23. 23.There are 11 pink kites and 3 green kites. How many kites are there in all?
  24. 24.11 + 5 =
  25. 25.2 + 3 + 7 =
  26. 26.14 + ? = 16
  27. 27.8 + 1 + 3 =
  28. 28.There are 4 white balloons and 2 green balloons. How many balloons are there in all?
  29. 29.? + 4 = 8
  30. 30.5 + ? = 12
  31. 31.Manav has 9 balls and gets 1 ball more. How many balls does Manav have now?
  32. 32.3 + 2 =
  33. 33.14 + 3 =
  34. 34.1 + 7 + 3 =
  35. 35.Gurpreet has 13 mangoes and gets 4 mangoes more. How many mangoes does Gurpreet have now?
  36. 36.Arjun has 11 books and gets 8 books more. How many books does Arjun have now?
  37. 37.There are 10 pink flowers and 6 blue flowers. How many flowers are there in all?
  38. 38.8 + 4 + 1 =
  39. 39.5 + 3 + 2 =
  40. 40.Ananya has 13 marbles and gets 2 marbles more. How many marbles does Ananya have now?

Answer key

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

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