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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 187 · 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. 1.1 + 12 =
  2. 2.Diya has 10 crayons and gets 3 crayons more. How many crayons does Diya have now?
  3. 3.There are 9 yellow kites and 10 white kites. How many kites are there in all?
  4. 4.Vivaan has 15 shells and gets 1 shell more. How many shells does Vivaan have now?
  5. 5.10 + 3 =
  6. 6.12 + 2 =
  7. 7.There are 6 white balloons and 8 red balloons. How many balloons are there in all?
  8. 8.4 + ? = 11
  9. 9.9 + 7 =
  10. 10.7 + 3 + 5 =
  11. 11.Arjun has 4 pencils and gets 14 pencils more. How many pencils does Arjun have now?
  12. 12.11 + 7 =
  13. 13.9 + ? = 17
  14. 14.There are 12 green kites and 4 red kites. How many kites are there in all?
  15. 15.6 + 8 + 4 =
  16. 16.9 + 9 =
  17. 17.11 + 9 =
  18. 18.3 + ? = 8
  19. 19.12 + 3 =
  20. 20.7 + 3 + 2 =
  21. 21.There are 9 white flowers and 4 green flowers. How many flowers are there in all?
  22. 22.2 + ? = 4
  23. 23.8 + 2 + 2 =
  24. 24.5 + 4 =
  25. 25.4 + ? = 6
  26. 26.There are 5 pink kites and 13 blue kites. How many kites are there in all?
  27. 27.4 + 7 + 6 =
  28. 28.1 + 8 + 2 =
  29. 29.1 + 4 + 9 =
  30. 30.13 + 7 =
  31. 31.? + 2 = 9
  32. 32.? + 1 = 19
  33. 33.Zoya has 10 laddoos and gets 10 laddoos more. How many laddoos does Zoya have now?
  34. 34.There are 12 yellow kites and 3 pink kites. How many kites are there in all?
  35. 35.There are 6 blue flowers and 10 pink flowers. How many flowers are there in all?
  36. 36.3 + 6 + 7 =
  37. 37.1 + 7 + 3 =
  38. 38.Karan has 7 kites and gets 1 kite more. How many kites does Karan have now?
  39. 39.5 + 2 + 1 =
  40. 40.Aarav has 13 flowers and gets 1 flower more. How many flowers does Aarav have now?

Answer key

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

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