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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 596 · 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. 1.7 + 2 + 10 =
  2. 2.? + 3 = 17
  3. 3.14 + 1 =
  4. 4.2 + ? = 3
  5. 5.4 + 3 + 1 =
  6. 6.Manav has 12 pencils and gets 2 pencils more. How many pencils does Manav have now?
  7. 7.? + 1 = 4
  8. 8.There are 4 white flowers and 12 pink flowers. How many flowers are there in all?
  9. 9.Rahul has 3 balls and gets 15 balls more. How many balls does Rahul have now?
  10. 10.9 + 8 =
  11. 11.11 + 4 =
  12. 12.Manav has 9 pencils and gets 9 pencils more. How many pencils does Manav have now?
  13. 13.2 + 8 + 3 =
  14. 14.3 + 1 + 16 =
  15. 15.Tara has 6 mangoes and gets 4 mangoes more. How many mangoes does Tara have now?
  16. 16.3 + 3 =
  17. 17.4 + ? = 18
  18. 18.18 + 2 =
  19. 19.Aarav has 10 crayons and gets 4 crayons more. How many crayons does Aarav have now?
  20. 20.Dev has 12 marbles and gets 5 marbles more. How many marbles does Dev have now?
  21. 21.? + 5 = 11
  22. 22.There are 12 red beads and 3 green beads. How many beads are there in all?
  23. 23.1 + ? = 4
  24. 24.6 + 2 + 3 =
  25. 25.Arjun has 2 mangoes and gets 9 mangoes more. How many mangoes does Arjun have now?
  26. 26.There are 7 yellow flowers and 10 white flowers. How many flowers are there in all?
  27. 27.There are 7 green balls and 12 blue balls. How many balls are there in all?
  28. 28.Meera has 13 marbles and gets 1 marble more. How many marbles does Meera have now?
  29. 29.? + 3 = 6
  30. 30.Manav has 5 bananas and gets 12 bananas more. How many bananas does Manav have now?
  31. 31.There are 10 pink crayons and 5 green crayons. How many crayons are there in all?
  32. 32.1 + 8 + 5 =
  33. 33.4 + 1 =
  34. 34.14 + 4 =
  35. 35.Arjun has 4 laddoos and gets 4 laddoos more. How many laddoos does Arjun have now?
  36. 36.1 + 6 + 8 =
  37. 37.There are 6 green kites and 5 red kites. How many kites are there in all?
  38. 38.13 + 4 =
  39. 39.Arjun has 14 bananas and gets 1 banana more. How many bananas does Arjun have now?
  40. 40.There are 4 pink flowers and 3 red flowers. How many flowers are there in all?

Answer key

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

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