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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 30 · 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.There are 7 red crayons and 13 yellow crayons. How many crayons are there in all?
  2. 2.8 + ? = 10
  3. 3.? + 5 = 8
  4. 4.There are 5 red beads and 15 pink beads. How many beads are there in all?
  5. 5.There are 4 blue balloons and 6 white balloons. How many balloons are there in all?
  6. 6.There are 12 white kites and 4 red kites. How many kites are there in all?
  7. 7.10 + 5 =
  8. 8.? + 1 = 8
  9. 9.Priya has 8 bananas and gets 8 bananas more. How many bananas does Priya have now?
  10. 10.15 + 1 =
  11. 11.2 + ? = 4
  12. 12.There are 12 blue crayons and 3 white crayons. How many crayons are there in all?
  13. 13.2 + 3 + 6 =
  14. 14.Aarav has 5 books and gets 3 books more. How many books does Aarav have now?
  15. 15.2 + 5 + 8 =
  16. 16.8 + 2 + 4 =
  17. 17.Pooja has 10 crayons and gets 4 crayons more. How many crayons does Pooja have now?
  18. 18.Nisha has 2 kites and gets 1 kite more. How many kites does Nisha have now?
  19. 19.18 + 2 =
  20. 20.? + 2 = 11
  21. 21.1 + ? = 7
  22. 22.? + 8 = 11
  23. 23.11 + 5 =
  24. 24.1 + 6 + 13 =
  25. 25.1 + 5 + 8 =
  26. 26.Diya has 4 laddoos and gets 5 laddoos more. How many laddoos does Diya have now?
  27. 27.17 + 2 =
  28. 28.2 + 1 + 3 =
  29. 29.There are 2 white crayons and 8 yellow crayons. How many crayons are there in all?
  30. 30.1 + 4 + 9 =
  31. 31.Tara has 2 kites and gets 13 kites more. How many kites does Tara have now?
  32. 32.6 + 10 =
  33. 33.There are 6 blue kites and 9 pink kites. How many kites are there in all?
  34. 34.Ananya has 9 pencils and gets 10 pencils more. How many pencils does Ananya have now?
  35. 35.Nisha has 4 balls and gets 5 balls more. How many balls does Nisha have now?
  36. 36.2 + 2 + 11 =
  37. 37.There are 4 pink balloons and 4 yellow balloons. How many balloons are there in all?
  38. 38.There are 11 red kites and 2 yellow kites. How many kites are there in all?
  39. 39.Pooja has 6 marbles and gets 4 marbles more. How many marbles does Pooja have now?
  40. 40.6 + 5 =

Answer key

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

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