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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 373 · 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 + 1 + 14 =
  2. 2.Nisha has 5 books and gets 6 books more. How many books does Nisha have now?
  3. 3.There are 3 blue kites and 7 red kites. How many kites are there in all?
  4. 4.There are 6 green balls and 9 pink balls. How many balls are there in all?
  5. 5.Arjun has 3 books and gets 10 books more. How many books does Arjun have now?
  6. 6.? + 14 = 18
  7. 7.7 + 1 + 2 =
  8. 8.7 + 4 + 7 =
  9. 9.11 + 7 =
  10. 10.Arjun has 11 shells and gets 1 shell more. How many shells does Arjun have now?
  11. 11.Kavya has 9 balloons and gets 1 balloon more. How many balloons does Kavya have now?
  12. 12.? + 6 = 10
  13. 13.15 + 4 =
  14. 14.1 + 3 =
  15. 15.7 + 8 + 5 =
  16. 16.There are 7 white balls and 9 pink balls. How many balls are there in all?
  17. 17.There are 2 yellow beads and 17 white beads. How many beads are there in all?
  18. 18.? + 2 = 3
  19. 19.Pooja has 5 crayons and gets 4 crayons more. How many crayons does Pooja have now?
  20. 20.15 + 3 =
  21. 21.Pooja has 7 laddoos and gets 1 laddoo more. How many laddoos does Pooja have now?
  22. 22.? + 3 = 5
  23. 23.1 + 8 =
  24. 24.? + 5 = 7
  25. 25.5 + 6 + 8 =
  26. 26.Diya has 2 laddoos and gets 6 laddoos more. How many laddoos does Diya have now?
  27. 27.There are 3 yellow balls and 2 red balls. How many balls are there in all?
  28. 28.10 + 1 =
  29. 29.Aarav has 15 mangoes and gets 3 mangoes more. How many mangoes does Aarav have now?
  30. 30.9 + 1 =
  31. 31.There are 3 white beads and 9 yellow beads. How many beads are there in all?
  32. 32.5 + 1 + 13 =
  33. 33.There are 2 pink flowers and 14 blue flowers. How many flowers are there in all?
  34. 34.? + 3 = 16
  35. 35.There are 5 yellow beads and 6 blue beads. How many beads are there in all?
  36. 36.Lakshmi has 10 crayons and gets 4 crayons more. How many crayons does Lakshmi have now?
  37. 37.4 + 10 =
  38. 38.2 + 5 + 13 =
  39. 39.7 + 6 + 5 =
  40. 40.There are 8 green crayons and 3 pink crayons. How many crayons are there in all?

Answer key

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

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