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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 339 · 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. 1.15 + 4 =
  2. 2.Gurpreet has 5 flowers and gets 15 flowers more. How many flowers does Gurpreet have now?
  3. 3.5 + 5 + 6 =
  4. 4.There are 2 green balls and 4 blue balls. How many balls are there in all?
  5. 5.6 + 7 + 7 =
  6. 6.5 + 15 =
  7. 7.? + 3 = 13
  8. 8.? + 6 = 7
  9. 9.Karan has 3 marbles and gets 8 marbles more. How many marbles does Karan have now?
  10. 10.Ananya has 6 mangoes and gets 13 mangoes more. How many mangoes does Ananya have now?
  11. 11.Nisha has 14 kites and gets 2 kites more. How many kites does Nisha have now?
  12. 12.6 + 8 + 5 =
  13. 13.There are 8 yellow balls and 3 pink balls. How many balls are there in all?
  14. 14.Rahul has 4 flowers and gets 10 flowers more. How many flowers does Rahul have now?
  15. 15.3 + ? = 6
  16. 16.There are 10 green beads and 6 yellow beads. How many beads are there in all?
  17. 17.2 + ? = 3
  18. 18.Rahul has 12 balloons and gets 7 balloons more. How many balloons does Rahul have now?
  19. 19.17 + 3 =
  20. 20.? + 2 = 6
  21. 21.4 + 9 =
  22. 22.7 + 1 + 7 =
  23. 23.Nisha has 3 marbles and gets 7 marbles more. How many marbles does Nisha have now?
  24. 24.? + 16 = 18
  25. 25.? + 6 = 10
  26. 26.Joseph has 3 balls and gets 8 balls more. How many balls does Joseph have now?
  27. 27.Lakshmi has 6 crayons and gets 1 crayon more. How many crayons does Lakshmi have now?
  28. 28.Pooja has 5 mangoes and gets 1 mango more. How many mangoes does Pooja have now?
  29. 29.11 + 2 =
  30. 30.Meera has 5 crayons and gets 6 crayons more. How many crayons does Meera have now?
  31. 31.There are 8 white crayons and 8 yellow crayons. How many crayons are there in all?
  32. 32.Rohan has 12 flowers and gets 5 flowers more. How many flowers does Rohan have now?
  33. 33.There are 6 blue crayons and 4 red crayons. How many crayons are there in all?
  34. 34.? + 5 = 9
  35. 35.Tara has 14 pencils and gets 2 pencils more. How many pencils does Tara have now?
  36. 36.Manav has 11 bananas and gets 2 bananas more. How many bananas does Manav have now?
  37. 37.Rohan has 9 crayons and gets 3 crayons more. How many crayons does Rohan have now?
  38. 38.? + 2 = 4
  39. 39.7 + 3 + 1 =
  40. 40.? + 1 = 3

Answer key

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

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