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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 313 · 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. 1.6 + ? = 8
  2. 2.Aditya has 3 balls and gets 6 balls more. How many balls does Aditya have now?
  3. 3.4 + 1 + 5 =
  4. 4.4 + ? = 17
  5. 5.Zoya has 5 books and gets 13 books more. How many books does Zoya have now?
  6. 6.18 + 2 =
  7. 7.Rahul has 11 shells and gets 4 shells more. How many shells does Rahul have now?
  8. 8.7 + 6 + 7 =
  9. 9.Manav has 2 mangoes and gets 7 mangoes more. How many mangoes does Manav have now?
  10. 10.19 + 1 =
  11. 11.? + 4 = 9
  12. 12.Riya has 3 marbles and gets 2 marbles more. How many marbles does Riya have now?
  13. 13.Dev has 7 flowers and gets 1 flower more. How many flowers does Dev have now?
  14. 14.Gurpreet has 4 crayons and gets 10 crayons more. How many crayons does Gurpreet have now?
  15. 15.1 + ? = 4
  16. 16.There are 6 blue balloons and 11 green balloons. How many balloons are there in all?
  17. 17.15 + 3 =
  18. 18.1 + 2 + 8 =
  19. 19.There are 12 red balls and 4 white balls. How many balls are there in all?
  20. 20.There are 5 pink balls and 13 green balls. How many balls are there in all?
  21. 21.Gurpreet has 13 crayons and gets 7 crayons more. How many crayons does Gurpreet have now?
  22. 22.7 + 8 + 3 =
  23. 23.Pooja has 2 laddoos and gets 9 laddoos more. How many laddoos does Pooja have now?
  24. 24.Zoya has 12 flowers and gets 1 flower more. How many flowers does Zoya have now?
  25. 25.Riya has 3 balloons and gets 17 balloons more. How many balloons does Riya have now?
  26. 26.There are 2 yellow balls and 7 pink balls. How many balls are there in all?
  27. 27.There are 4 red flowers and 2 green flowers. How many flowers are there in all?
  28. 28.There are 4 white kites and 4 pink kites. How many kites are there in all?
  29. 29.There are 2 red kites and 2 green kites. How many kites are there in all?
  30. 30.There are 12 blue kites and 8 green kites. How many kites are there in all?
  31. 31.? + 2 = 19
  32. 32.2 + 3 + 1 =
  33. 33.Gurpreet has 5 shells and gets 14 shells more. How many shells does Gurpreet have now?
  34. 34.There are 4 red balloons and 7 blue balloons. How many balloons are there in all?
  35. 35.4 + 2 + 12 =
  36. 36.5 + 13 =
  37. 37.13 + ? = 20
  38. 38.15 + 2 =
  39. 39.There are 10 red kites and 2 yellow kites. How many kites are there in all?
  40. 40.There are 2 pink flowers and 7 green flowers. How many flowers are there in all?

Answer key

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

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