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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 995 · 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 10 yellow balloons and 9 blue balloons. How many balloons are there in all?
  2. 2.There are 7 pink kites and 11 blue kites. How many kites are there in all?
  3. 3.There are 4 white flowers and 7 pink flowers. How many flowers are there in all?
  4. 4.Rohan has 4 crayons and gets 5 crayons more. How many crayons does Rohan have now?
  5. 5.9 + 2 =
  6. 6.2 + ? = 4
  7. 7.There are 4 red balls and 3 white balls. How many balls are there in all?
  8. 8.Sneha has 7 bananas and gets 3 bananas more. How many bananas does Sneha have now?
  9. 9.8 + 6 + 1 =
  10. 10.2 + 7 + 2 =
  11. 11.16 + 4 =
  12. 12.There are 3 red balls and 15 yellow balls. How many balls are there in all?
  13. 13.2 + ? = 19
  14. 14.There are 4 white crayons and 3 pink crayons. How many crayons are there in all?
  15. 15.There are 3 white balls and 5 green balls. How many balls are there in all?
  16. 16.9 + 1 =
  17. 17.12 + 4 =
  18. 18.1 + ? = 5
  19. 19.6 + ? = 14
  20. 20.? + 2 = 19
  21. 21.13 + 2 =
  22. 22.3 + 3 + 10 =
  23. 23.11 + 5 =
  24. 24.4 + 7 + 1 =
  25. 25.There are 6 white beads and 7 pink beads. How many beads are there in all?
  26. 26.There are 8 pink balloons and 12 red balloons. How many balloons are there in all?
  27. 27.Sneha has 7 kites and gets 3 kites more. How many kites does Sneha have now?
  28. 28.? + 13 = 16
  29. 29.2 + 4 + 4 =
  30. 30.There are 7 blue crayons and 12 white crayons. How many crayons are there in all?
  31. 31.Aditya has 5 kites and gets 14 kites more. How many kites does Aditya have now?
  32. 32.? + 1 = 20
  33. 33.There are 2 pink balloons and 15 red balloons. How many balloons are there in all?
  34. 34.Arjun has 13 balls and gets 6 balls more. How many balls does Arjun have now?
  35. 35.14 + ? = 19
  36. 36.12 + 1 =
  37. 37.13 + 6 =
  38. 38.Aditya has 6 laddoos and gets 3 laddoos more. How many laddoos does Aditya have now?
  39. 39.Sneha has 7 pencils and gets 2 pencils more. How many pencils does Sneha have now?
  40. 40.There are 5 green flowers and 7 red flowers. How many flowers are there in all?

Answer key

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

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