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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 526 · 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.Arjun has 14 balls and gets 6 balls more. How many balls does Arjun have now?
  2. 2.6 + 3 + 3 =
  3. 3.1 + ? = 5
  4. 4.1 + 1 + 13 =
  5. 5.There are 7 blue crayons and 13 pink crayons. How many crayons are there in all?
  6. 6.9 + ? = 13
  7. 7.Meera has 13 balloons and gets 2 balloons more. How many balloons does Meera have now?
  8. 8.4 + ? = 6
  9. 9.16 + 1 =
  10. 10.7 + 7 + 3 =
  11. 11.There are 6 red flowers and 3 blue flowers. How many flowers are there in all?
  12. 12.1 + 2 + 11 =
  13. 13.There are 6 white balls and 2 red balls. How many balls are there in all?
  14. 14.There are 9 green beads and 10 white beads. How many beads are there in all?
  15. 15.There are 5 red flowers and 4 white flowers. How many flowers are there in all?
  16. 16.13 + 4 =
  17. 17.4 + ? = 8
  18. 18.2 + ? = 3
  19. 19.Nisha has 3 mangoes and gets 3 mangoes more. How many mangoes does Nisha have now?
  20. 20.? + 5 = 17
  21. 21.There are 12 blue crayons and 6 pink crayons. How many crayons are there in all?
  22. 22.4 + 4 =
  23. 23.Isha has 6 kites and gets 2 kites more. How many kites does Isha have now?
  24. 24.5 + ? = 6
  25. 25.There are 2 yellow beads and 18 pink beads. How many beads are there in all?
  26. 26.Kavya has 13 balls and gets 5 balls more. How many balls does Kavya have now?
  27. 27.9 + 8 =
  28. 28.There are 6 yellow flowers and 11 pink flowers. How many flowers are there in all?
  29. 29.4 + 7 + 2 =
  30. 30.8 + 3 + 1 =
  31. 31.There are 8 blue flowers and 7 green flowers. How many flowers are there in all?
  32. 32.Riya has 10 books and gets 6 books more. How many books does Riya have now?
  33. 33.12 + 6 =
  34. 34.There are 9 pink flowers and 3 yellow flowers. How many flowers are there in all?
  35. 35.5 + ? = 7
  36. 36.Meera has 3 balloons and gets 14 balloons more. How many balloons does Meera have now?
  37. 37.2 + 6 + 6 =
  38. 38.16 + 4 =
  39. 39.Ananya has 6 books and gets 3 books more. How many books does Ananya have now?
  40. 40.3 + 4 + 4 =

Answer key

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

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