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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 695 · 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. 1.15 + ? = 17
  2. 2.Dev has 4 laddoos and gets 10 laddoos more. How many laddoos does Dev have now?
  3. 3.13 + 5 =
  4. 4.19 + 1 =
  5. 5.6 + 8 + 6 =
  6. 6.6 + 6 + 6 =
  7. 7.3 + 14 =
  8. 8.? + 4 = 17
  9. 9.5 + 5 =
  10. 10.3 + 10 =
  11. 11.1 + 2 + 6 =
  12. 12.2 + 11 =
  13. 13.3 + 7 + 10 =
  14. 14.There are 9 green kites and 6 yellow kites. How many kites are there in all?
  15. 15.1 + 15 =
  16. 16.8 + 7 + 4 =
  17. 17.6 + 11 =
  18. 18.3 + ? = 5
  19. 19.? + 12 = 15
  20. 20.? + 5 = 17
  21. 21.Nisha has 5 bananas and gets 6 bananas more. How many bananas does Nisha have now?
  22. 22.10 + 7 =
  23. 23.3 + 7 =
  24. 24.4 + ? = 6
  25. 25.There are 7 pink balls and 2 red balls. How many balls are there in all?
  26. 26.There are 4 pink crayons and 3 yellow crayons. How many crayons are there in all?
  27. 27.Aditya has 8 laddoos and gets 9 laddoos more. How many laddoos does Aditya have now?
  28. 28.4 + 1 + 8 =
  29. 29.Kavya has 5 balloons and gets 1 balloon more. How many balloons does Kavya have now?
  30. 30.Aditya has 11 crayons and gets 1 crayon more. How many crayons does Aditya have now?
  31. 31.? + 10 = 18
  32. 32.There are 2 green flowers and 16 white flowers. How many flowers are there in all?
  33. 33.12 + 6 =
  34. 34.There are 7 red balloons and 3 white balloons. How many balloons are there in all?
  35. 35.There are 12 white crayons and 6 blue crayons. How many crayons are there in all?
  36. 36.There are 9 red beads and 3 yellow beads. How many beads are there in all?
  37. 37.? + 8 = 12
  38. 38.Dev has 4 balloons and gets 13 balloons more. How many balloons does Dev have now?
  39. 39.5 + 11 =
  40. 40.2 + 1 + 14 =

Answer key

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

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