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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 724 · 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.Aditya has 12 crayons and gets 1 crayon more. How many crayons does Aditya have now?
  2. 2.Karan has 12 shells and gets 2 shells more. How many shells does Karan have now?
  3. 3.8 + 1 + 2 =
  4. 4.There are 3 yellow flowers and 14 blue flowers. How many flowers are there in all?
  5. 5.8 + 8 + 1 =
  6. 6.9 + ? = 19
  7. 7.Ishaan has 2 mangoes and gets 3 mangoes more. How many mangoes does Ishaan have now?
  8. 8.7 + 1 =
  9. 9.There are 3 red flowers and 12 blue flowers. How many flowers are there in all?
  10. 10.19 + 1 =
  11. 11.Aarav has 10 laddoos and gets 2 laddoos more. How many laddoos does Aarav have now?
  12. 12.12 + 6 =
  13. 13.4 + 4 + 5 =
  14. 14.7 + 13 =
  15. 15.Ananya has 5 bananas and gets 2 bananas more. How many bananas does Ananya have now?
  16. 16.There are 3 red crayons and 17 green crayons. How many crayons are there in all?
  17. 17.Ananya has 6 mangoes and gets 6 mangoes more. How many mangoes does Ananya have now?
  18. 18.8 + 7 =
  19. 19.3 + 11 =
  20. 20.Aarav has 14 mangoes and gets 5 mangoes more. How many mangoes does Aarav have now?
  21. 21.Dev has 7 bananas and gets 4 bananas more. How many bananas does Dev have now?
  22. 22.? + 2 = 19
  23. 23.4 + 8 =
  24. 24.12 + ? = 17
  25. 25.5 + ? = 15
  26. 26.4 + 5 + 3 =
  27. 27.1 + 7 + 3 =
  28. 28.4 + 9 =
  29. 29.There are 11 green beads and 4 white beads. How many beads are there in all?
  30. 30.There are 3 red flowers and 6 pink flowers. How many flowers are there in all?
  31. 31.Sneha has 13 laddoos and gets 6 laddoos more. How many laddoos does Sneha have now?
  32. 32.4 + 6 =
  33. 33.There are 8 white balloons and 6 red balloons. How many balloons are there in all?
  34. 34.? + 1 = 12
  35. 35.Karan has 6 kites and gets 13 kites more. How many kites does Karan have now?
  36. 36.18 + 1 =
  37. 37.Arjun has 11 pencils and gets 7 pencils more. How many pencils does Arjun have now?
  38. 38.8 + 5 + 6 =
  39. 39.There are 4 green flowers and 2 yellow flowers. How many flowers are there in all?
  40. 40.Aarav has 6 kites and gets 10 kites more. How many kites does Aarav have now?

Answer key

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

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