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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 935 · 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.Gurpreet has 8 mangoes and gets 1 mango more. How many mangoes does Gurpreet have now?
  2. 2.18 + 1 =
  3. 3.Vivaan has 14 crayons and gets 2 crayons more. How many crayons does Vivaan have now?
  4. 4.4 + 5 + 9 =
  5. 5.3 + 8 + 6 =
  6. 6.1 + ? = 3
  7. 7.11 + ? = 19
  8. 8.There are 4 red crayons and 14 green crayons. How many crayons are there in all?
  9. 9.Aarav has 12 bananas and gets 1 banana more. How many bananas does Aarav have now?
  10. 10.2 + 1 + 4 =
  11. 11.2 + 8 + 10 =
  12. 12.Joseph has 14 bananas and gets 6 bananas more. How many bananas does Joseph have now?
  13. 13.5 + 7 =
  14. 14.7 + 6 + 2 =
  15. 15.Diya has 4 laddoos and gets 9 laddoos more. How many laddoos does Diya have now?
  16. 16.4 + 2 =
  17. 17.There are 9 green beads and 7 blue beads. How many beads are there in all?
  18. 18.Lakshmi has 15 marbles and gets 1 marble more. How many marbles does Lakshmi have now?
  19. 19.5 + 7 + 6 =
  20. 20.19 + 1 =
  21. 21.5 + 4 + 8 =
  22. 22.1 + 3 =
  23. 23.There are 7 blue crayons and 4 red crayons. How many crayons are there in all?
  24. 24.There are 11 blue balloons and 3 red balloons. How many balloons are there in all?
  25. 25.Aarav has 11 pencils and gets 7 pencils more. How many pencils does Aarav have now?
  26. 26.11 + 4 =
  27. 27.There are 4 green flowers and 7 red flowers. How many flowers are there in all?
  28. 28.There are 8 red kites and 4 white kites. How many kites are there in all?
  29. 29.2 + 2 =
  30. 30.Tara has 4 balloons and gets 2 balloons more. How many balloons does Tara have now?
  31. 31.There are 6 red crayons and 10 blue crayons. How many crayons are there in all?
  32. 32.There are 10 white balls and 5 red balls. How many balls are there in all?
  33. 33.16 + 3 =
  34. 34.3 + 1 + 10 =
  35. 35.Kavya has 2 bananas and gets 2 bananas more. How many bananas does Kavya have now?
  36. 36.17 + 3 =
  37. 37.Rahul has 9 marbles and gets 5 marbles more. How many marbles does Rahul have now?
  38. 38.2 + 8 =
  39. 39.1 + ? = 9
  40. 40.18 + 2 =

Answer key

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

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