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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 484 · 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 8 white balls and 9 blue balls. How many balls are there in all?
  2. 2.5 + 8 + 4 =
  3. 3.2 + 1 + 13 =
  4. 4.14 + 1 =
  5. 5.Karan has 13 pencils and gets 1 pencil more. How many pencils does Karan have now?
  6. 6.There are 8 yellow flowers and 7 red flowers. How many flowers are there in all?
  7. 7.12 + 7 =
  8. 8.14 + 6 =
  9. 9.2 + ? = 3
  10. 10.4 + 2 =
  11. 11.There are 3 red crayons and 8 pink crayons. How many crayons are there in all?
  12. 12.There are 9 red kites and 8 pink kites. How many kites are there in all?
  13. 13.Dev has 8 shells and gets 6 shells more. How many shells does Dev have now?
  14. 14.4 + 5 =
  15. 15.There are 5 green crayons and 4 blue crayons. How many crayons are there in all?
  16. 16.? + 1 = 4
  17. 17.14 + ? = 16
  18. 18.4 + 1 =
  19. 19.There are 5 yellow beads and 10 red beads. How many beads are there in all?
  20. 20.2 + 3 =
  21. 21.15 + 2 =
  22. 22.Kavya has 2 crayons and gets 4 crayons more. How many crayons does Kavya have now?
  23. 23.1 + 5 + 2 =
  24. 24.There are 11 blue flowers and 5 yellow flowers. How many flowers are there in all?
  25. 25.2 + 13 =
  26. 26.2 + 4 + 2 =
  27. 27.Pooja has 11 balls and gets 2 balls more. How many balls does Pooja have now?
  28. 28.18 + 1 =
  29. 29.Rahul has 10 balloons and gets 5 balloons more. How many balloons does Rahul have now?
  30. 30.There are 3 green flowers and 8 yellow flowers. How many flowers are there in all?
  31. 31.1 + 7 + 3 =
  32. 32.Isha has 5 bananas and gets 8 bananas more. How many bananas does Isha have now?
  33. 33.1 + 1 + 8 =
  34. 34.1 + 4 + 1 =
  35. 35.6 + 5 + 7 =
  36. 36.Zoya has 11 shells and gets 6 shells more. How many shells does Zoya have now?
  37. 37.? + 1 = 3
  38. 38.? + 1 = 15
  39. 39.4 + 11 =
  40. 40.13 + 1 =

Answer key

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

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