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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 250 · 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.? + 2 = 5
  2. 2.Saanvi has 14 mangoes and gets 6 mangoes more. How many mangoes does Saanvi have now?
  3. 3.Arjun has 9 flowers and gets 4 flowers more. How many flowers does Arjun have now?
  4. 4.10 + 9 =
  5. 5.1 + 1 + 3 =
  6. 6.There are 6 red crayons and 3 blue crayons. How many crayons are there in all?
  7. 7.Vivaan has 2 marbles and gets 5 marbles more. How many marbles does Vivaan have now?
  8. 8.16 + 2 =
  9. 9.2 + 1 + 2 =
  10. 10.12 + 4 =
  11. 11.There are 11 white flowers and 3 green flowers. How many flowers are there in all?
  12. 12.8 + 5 + 5 =
  13. 13.Riya has 9 books and gets 6 books more. How many books does Riya have now?
  14. 14.? + 10 = 20
  15. 15.17 + 1 =
  16. 16.7 + 1 + 11 =
  17. 17.2 + 2 + 16 =
  18. 18.Isha has 9 laddoos and gets 11 laddoos more. How many laddoos does Isha have now?
  19. 19.12 + 1 =
  20. 20.5 + 4 + 6 =
  21. 21.1 + 7 + 3 =
  22. 22.11 + 2 =
  23. 23.Farhan has 4 crayons and gets 6 crayons more. How many crayons does Farhan have now?
  24. 24.5 + 7 + 2 =
  25. 25.1 + ? = 8
  26. 26.5 + 12 =
  27. 27.2 + 4 =
  28. 28.4 + ? = 19
  29. 29.There are 3 red beads and 10 yellow beads. How many beads are there in all?
  30. 30.4 + 2 + 1 =
  31. 31.3 + 4 + 6 =
  32. 32.Dev has 2 shells and gets 3 shells more. How many shells does Dev have now?
  33. 33.There are 10 yellow crayons and 8 pink crayons. How many crayons are there in all?
  34. 34.There are 4 yellow balloons and 8 blue balloons. How many balloons are there in all?
  35. 35.14 + ? = 20
  36. 36.2 + 8 + 7 =
  37. 37.Kavya has 9 balloons and gets 3 balloons more. How many balloons does Kavya have now?
  38. 38.There are 11 pink kites and 3 blue kites. How many kites are there in all?
  39. 39.5 + 14 =
  40. 40.? + 8 = 16

Answer key

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

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