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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 647 · 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. 1.16 + 4 =
  2. 2.There are 5 green crayons and 2 red crayons. How many crayons are there in all?
  3. 3.There are 5 green beads and 3 red beads. How many beads are there in all?
  4. 4.Diya has 15 crayons and gets 4 crayons more. How many crayons does Diya have now?
  5. 5.Arjun has 10 bananas and gets 2 bananas more. How many bananas does Arjun have now?
  6. 6.There are 7 pink balls and 13 red balls. How many balls are there in all?
  7. 7.Aarav has 2 flowers and gets 5 flowers more. How many flowers does Aarav have now?
  8. 8.There are 3 green kites and 3 yellow kites. How many kites are there in all?
  9. 9.5 + 10 =
  10. 10.3 + ? = 5
  11. 11.16 + 2 =
  12. 12.There are 7 red balls and 3 blue balls. How many balls are there in all?
  13. 13.19 + 1 =
  14. 14.Pooja has 15 books and gets 2 books more. How many books does Pooja have now?
  15. 15.There are 4 blue kites and 7 yellow kites. How many kites are there in all?
  16. 16.13 + 7 =
  17. 17.14 + 6 =
  18. 18.2 + 3 + 13 =
  19. 19.There are 2 green kites and 10 pink kites. How many kites are there in all?
  20. 20.There are 7 pink balloons and 9 yellow balloons. How many balloons are there in all?
  21. 21.4 + 8 + 1 =
  22. 22.? + 1 = 8
  23. 23.There are 5 green flowers and 4 pink flowers. How many flowers are there in all?
  24. 24.There are 8 red beads and 3 green beads. How many beads are there in all?
  25. 25.? + 9 = 15
  26. 26.There are 12 blue balloons and 6 pink balloons. How many balloons are there in all?
  27. 27.Gurpreet has 9 bananas and gets 10 bananas more. How many bananas does Gurpreet have now?
  28. 28.Vivaan has 13 flowers and gets 2 flowers more. How many flowers does Vivaan have now?
  29. 29.12 + 8 =
  30. 30.There are 5 red balloons and 11 pink balloons. How many balloons are there in all?
  31. 31.10 + 10 =
  32. 32.15 + 4 =
  33. 33.3 + ? = 18
  34. 34.2 + 6 =
  35. 35.4 + 6 + 10 =
  36. 36.Diya has 9 balloons and gets 3 balloons more. How many balloons does Diya have now?
  37. 37.1 + 3 + 4 =
  38. 38.Diya has 11 books and gets 4 books more. How many books does Diya have now?
  39. 39.There are 4 green balloons and 14 yellow balloons. How many balloons are there in all?
  40. 40.Dev has 7 laddoos and gets 7 laddoos more. How many laddoos does Dev have now?

Answer key

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

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