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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 606 · 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.Aarav has 9 crayons and gets 1 crayon more. How many crayons does Aarav have now?
  2. 2.There are 12 red crayons and 7 green crayons. How many crayons are there in all?
  3. 3.3 + 1 + 6 =
  4. 4.Dev has 10 flowers and gets 5 flowers more. How many flowers does Dev have now?
  5. 5.Aditya has 11 kites and gets 2 kites more. How many kites does Aditya have now?
  6. 6.Aarav has 3 shells and gets 16 shells more. How many shells does Aarav have now?
  7. 7.Nisha has 9 mangoes and gets 4 mangoes more. How many mangoes does Nisha have now?
  8. 8.1 + ? = 3
  9. 9.3 + 3 =
  10. 10.Rohan has 8 crayons and gets 7 crayons more. How many crayons does Rohan have now?
  11. 11.1 + 2 + 10 =
  12. 12.18 + ? = 20
  13. 13.9 + 3 =
  14. 14.There are 5 red balls and 14 yellow balls. How many balls are there in all?
  15. 15.Lakshmi has 14 bananas and gets 2 bananas more. How many bananas does Lakshmi have now?
  16. 16.There are 7 white flowers and 6 pink flowers. How many flowers are there in all?
  17. 17.Aarav has 15 mangoes and gets 4 mangoes more. How many mangoes does Aarav have now?
  18. 18.18 + 2 =
  19. 19.16 + 1 =
  20. 20.9 + 11 =
  21. 21.6 + ? = 7
  22. 22.Zoya has 7 laddoos and gets 6 laddoos more. How many laddoos does Zoya have now?
  23. 23.1 + ? = 18
  24. 24.5 + 6 + 3 =
  25. 25.Tara has 3 mangoes and gets 3 mangoes more. How many mangoes does Tara have now?
  26. 26.3 + 1 + 1 =
  27. 27.There are 3 white crayons and 8 blue crayons. How many crayons are there in all?
  28. 28.Aarav has 8 balloons and gets 12 balloons more. How many balloons does Aarav have now?
  29. 29.6 + 13 =
  30. 30.? + 10 = 16
  31. 31.17 + 1 =
  32. 32.Sneha has 10 balls and gets 3 balls more. How many balls does Sneha have now?
  33. 33.8 + ? = 10
  34. 34.3 + ? = 14
  35. 35.16 + 3 =
  36. 36.Aarav has 12 balls and gets 6 balls more. How many balls does Aarav have now?
  37. 37.2 + ? = 3
  38. 38.There are 10 green balloons and 10 pink balloons. How many balloons are there in all?
  39. 39.There are 11 blue kites and 5 yellow kites. How many kites are there in all?
  40. 40.There are 5 pink flowers and 5 green flowers. How many flowers are there in all?

Answer key

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

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