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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 699 · 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. 1.16 + 4 =
  2. 2.Manav has 9 pencils and gets 11 pencils more. How many pencils does Manav have now?
  3. 3.7 + 8 + 4 =
  4. 4.6 + 4 =
  5. 5.19 + 1 =
  6. 6.Riya has 14 marbles and gets 2 marbles more. How many marbles does Riya have now?
  7. 7.There are 8 yellow balloons and 8 red balloons. How many balloons are there in all?
  8. 8.Gurpreet has 4 balls and gets 14 balls more. How many balls does Gurpreet have now?
  9. 9.Rahul has 5 kites and gets 4 kites more. How many kites does Rahul have now?
  10. 10.? + 1 = 8
  11. 11.There are 10 white crayons and 8 yellow crayons. How many crayons are there in all?
  12. 12.8 + 2 + 3 =
  13. 13.12 + 7 =
  14. 14.There are 4 red crayons and 15 green crayons. How many crayons are there in all?
  15. 15.There are 8 red balls and 12 yellow balls. How many balls are there in all?
  16. 16.11 + 4 =
  17. 17.3 + 15 =
  18. 18.11 + 3 =
  19. 19.1 + 8 =
  20. 20.There are 2 blue crayons and 15 white crayons. How many crayons are there in all?
  21. 21.There are 3 yellow flowers and 7 green flowers. How many flowers are there in all?
  22. 22.? + 10 = 14
  23. 23.There are 12 pink balls and 6 white balls. How many balls are there in all?
  24. 24.There are 9 yellow beads and 6 green beads. How many beads are there in all?
  25. 25.There are 11 white balloons and 7 pink balloons. How many balloons are there in all?
  26. 26.6 + 7 =
  27. 27.There are 8 red kites and 8 green kites. How many kites are there in all?
  28. 28.Dev has 6 crayons and gets 12 crayons more. How many crayons does Dev have now?
  29. 29.? + 7 = 8
  30. 30.Ananya has 9 kites and gets 7 kites more. How many kites does Ananya have now?
  31. 31.Nisha has 13 shells and gets 5 shells more. How many shells does Nisha have now?
  32. 32.Manav has 14 bananas and gets 2 bananas more. How many bananas does Manav have now?
  33. 33.There are 3 pink crayons and 7 green crayons. How many crayons are there in all?
  34. 34.1 + 3 + 5 =
  35. 35.6 + 4 + 4 =
  36. 36.Sneha has 5 laddoos and gets 13 laddoos more. How many laddoos does Sneha have now?
  37. 37.8 + 2 =
  38. 38.Aditya has 15 crayons and gets 1 crayon more. How many crayons does Aditya have now?
  39. 39.2 + 4 + 6 =
  40. 40.There are 6 green balloons and 3 red balloons. How many balloons are there in all?

Answer key

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

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