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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 220 · 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.Saanvi has 11 books and gets 7 books more. How many books does Saanvi have now?
  2. 2.6 + 3 =
  3. 3.Lakshmi has 4 marbles and gets 6 marbles more. How many marbles does Lakshmi have now?
  4. 4.1 + 9 =
  5. 5.There are 9 red kites and 11 green kites. How many kites are there in all?
  6. 6.Priya has 9 balloons and gets 5 balloons more. How many balloons does Priya have now?
  7. 7.There are 7 yellow balloons and 4 white balloons. How many balloons are there in all?
  8. 8.Kavya has 14 shells and gets 6 shells more. How many shells does Kavya have now?
  9. 9.Meera has 10 mangoes and gets 2 mangoes more. How many mangoes does Meera have now?
  10. 10.4 + 3 + 2 =
  11. 11.1 + 1 + 18 =
  12. 12.Manav has 10 crayons and gets 8 crayons more. How many crayons does Manav have now?
  13. 13.5 + 10 =
  14. 14.There are 2 red flowers and 12 green flowers. How many flowers are there in all?
  15. 15.12 + 1 =
  16. 16.Lakshmi has 6 mangoes and gets 6 mangoes more. How many mangoes does Lakshmi have now?
  17. 17.8 + 6 + 2 =
  18. 18.Aditya has 2 bananas and gets 4 bananas more. How many bananas does Aditya have now?
  19. 19.1 + ? = 5
  20. 20.4 + 3 + 12 =
  21. 21.5 + 3 + 4 =
  22. 22.14 + 5 =
  23. 23.There are 4 pink kites and 8 red kites. How many kites are there in all?
  24. 24.? + 1 = 7
  25. 25.4 + 5 + 4 =
  26. 26.3 + 4 + 6 =
  27. 27.There are 7 green beads and 10 yellow beads. How many beads are there in all?
  28. 28.? + 1 = 9
  29. 29.4 + ? = 5
  30. 30.8 + 4 =
  31. 31.There are 10 white balloons and 8 green balloons. How many balloons are there in all?
  32. 32.13 + 6 =
  33. 33.Kabir has 3 mangoes and gets 7 mangoes more. How many mangoes does Kabir have now?
  34. 34.3 + 3 + 7 =
  35. 35.17 + 1 =
  36. 36.8 + 2 + 10 =
  37. 37.1 + 3 + 5 =
  38. 38.3 + ? = 13
  39. 39.19 + 1 =
  40. 40.6 + 3 + 4 =

Answer key

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

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