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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 178 · 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. 1.1 + 3 =
  2. 2.6 + 5 =
  3. 3.Saanvi has 12 pencils and gets 8 pencils more. How many pencils does Saanvi have now?
  4. 4.8 + 1 =
  5. 5.Tara has 11 pencils and gets 5 pencils more. How many pencils does Tara have now?
  6. 6.7 + 2 + 6 =
  7. 7.5 + 15 =
  8. 8.Pooja has 12 balls and gets 3 balls more. How many balls does Pooja have now?
  9. 9.Meera has 14 marbles and gets 1 marble more. How many marbles does Meera have now?
  10. 10.Dev has 3 crayons and gets 8 crayons more. How many crayons does Dev have now?
  11. 11.There are 3 red balloons and 10 white balloons. How many balloons are there in all?
  12. 12.There are 2 red beads and 8 pink beads. How many beads are there in all?
  13. 13.There are 10 pink balloons and 4 green balloons. How many balloons are there in all?
  14. 14.11 + 8 =
  15. 15.Nisha has 15 pencils and gets 5 pencils more. How many pencils does Nisha have now?
  16. 16.2 + 18 =
  17. 17.6 + 13 =
  18. 18.Kabir has 10 mangoes and gets 2 mangoes more. How many mangoes does Kabir have now?
  19. 19.There are 4 white kites and 6 blue kites. How many kites are there in all?
  20. 20.Lakshmi has 3 flowers and gets 9 flowers more. How many flowers does Lakshmi have now?
  21. 21.Kabir has 11 laddoos and gets 3 laddoos more. How many laddoos does Kabir have now?
  22. 22.There are 7 yellow balloons and 9 blue balloons. How many balloons are there in all?
  23. 23.6 + 5 + 5 =
  24. 24.1 + 2 + 7 =
  25. 25.Manav has 4 balls and gets 10 balls more. How many balls does Manav have now?
  26. 26.Lakshmi has 9 balloons and gets 2 balloons more. How many balloons does Lakshmi have now?
  27. 27.7 + 6 + 3 =
  28. 28.2 + 10 =
  29. 29.Meera has 3 marbles and gets 10 marbles more. How many marbles does Meera have now?
  30. 30.11 + ? = 19
  31. 31.16 + ? = 17
  32. 32.2 + 3 =
  33. 33.? + 9 = 15
  34. 34.Sneha has 3 pencils and gets 1 pencil more. How many pencils does Sneha have now?
  35. 35.There are 3 pink beads and 10 white beads. How many beads are there in all?
  36. 36.8 + 6 =
  37. 37.Aarav has 15 marbles and gets 4 marbles more. How many marbles does Aarav have now?
  38. 38.? + 6 = 10
  39. 39.There are 8 yellow flowers and 10 green flowers. How many flowers are there in all?
  40. 40.Dev has 7 crayons and gets 8 crayons more. How many crayons does Dev have now?

Answer key

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

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