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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 206 · 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 11 green flowers and 6 white flowers. How many flowers are there in all?
  2. 2.Arjun has 9 books and gets 9 books more. How many books does Arjun have now?
  3. 3.1 + ? = 19
  4. 4.4 + 7 + 3 =
  5. 5.14 + 6 =
  6. 6.5 + ? = 11
  7. 7.Arjun has 14 crayons and gets 5 crayons more. How many crayons does Arjun have now?
  8. 8.There are 4 green balloons and 15 yellow balloons. How many balloons are there in all?
  9. 9.Ishaan has 14 flowers and gets 4 flowers more. How many flowers does Ishaan have now?
  10. 10.There are 5 white kites and 9 blue kites. How many kites are there in all?
  11. 11.Kabir has 15 marbles and gets 2 marbles more. How many marbles does Kabir have now?
  12. 12.1 + ? = 12
  13. 13.? + 6 = 14
  14. 14.4 + ? = 6
  15. 15.Lakshmi has 12 crayons and gets 5 crayons more. How many crayons does Lakshmi have now?
  16. 16.Manav has 4 crayons and gets 9 crayons more. How many crayons does Manav have now?
  17. 17.There are 9 yellow flowers and 3 green flowers. How many flowers are there in all?
  18. 18.? + 7 = 18
  19. 19.There are 6 red kites and 4 white kites. How many kites are there in all?
  20. 20.There are 8 yellow balls and 10 white balls. How many balls are there in all?
  21. 21.Priya has 7 flowers and gets 13 flowers more. How many flowers does Priya have now?
  22. 22.13 + 6 =
  23. 23.15 + 2 =
  24. 24.1 + 3 + 1 =
  25. 25.There are 11 white crayons and 5 red crayons. How many crayons are there in all?
  26. 26.Nisha has 10 flowers and gets 4 flowers more. How many flowers does Nisha have now?
  27. 27.There are 6 blue kites and 2 pink kites. How many kites are there in all?
  28. 28.5 + 4 + 4 =
  29. 29.4 + ? = 17
  30. 30.17 + 2 =
  31. 31.2 + 7 =
  32. 32.There are 2 red crayons and 2 yellow crayons. How many crayons are there in all?
  33. 33.4 + 1 =
  34. 34.Kavya has 15 bananas and gets 3 bananas more. How many bananas does Kavya have now?
  35. 35.3 + ? = 4
  36. 36.Aarav has 5 balloons and gets 1 balloon more. How many balloons does Aarav have now?
  37. 37.10 + 6 =
  38. 38.3 + 6 =
  39. 39.Meera has 8 crayons and gets 2 crayons more. How many crayons does Meera have now?
  40. 40.10 + 2 =

Answer key

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

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