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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 917 · 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. 1.8 + 1 + 5 =
  2. 2.14 + 4 =
  3. 3.There are 7 yellow balloons and 9 pink balloons. How many balloons are there in all?
  4. 4.Diya has 7 bananas and gets 8 bananas more. How many bananas does Diya have now?
  5. 5.15 + 2 =
  6. 6.There are 6 yellow balloons and 5 green balloons. How many balloons are there in all?
  7. 7.6 + 7 + 2 =
  8. 8.There are 9 yellow balloons and 2 red balloons. How many balloons are there in all?
  9. 9.There are 10 pink kites and 10 white kites. How many kites are there in all?
  10. 10.7 + 11 =
  11. 11.2 + 1 + 2 =
  12. 12.Gurpreet has 9 pencils and gets 1 pencil more. How many pencils does Gurpreet have now?
  13. 13.? + 11 = 19
  14. 14.Arjun has 10 balls and gets 6 balls more. How many balls does Arjun have now?
  15. 15.Aditya has 15 shells and gets 4 shells more. How many shells does Aditya have now?
  16. 16.There are 7 pink kites and 13 white kites. How many kites are there in all?
  17. 17.Gurpreet has 4 laddoos and gets 14 laddoos more. How many laddoos does Gurpreet have now?
  18. 18.6 + 6 + 7 =
  19. 19.? + 10 = 17
  20. 20.? + 7 = 10
  21. 21.10 + 8 =
  22. 22.Ananya has 7 balloons and gets 9 balloons more. How many balloons does Ananya have now?
  23. 23.Meera has 2 flowers and gets 6 flowers more. How many flowers does Meera have now?
  24. 24.There are 4 white balloons and 9 pink balloons. How many balloons are there in all?
  25. 25.8 + 7 + 2 =
  26. 26.Karan has 11 flowers and gets 3 flowers more. How many flowers does Karan have now?
  27. 27.3 + 14 =
  28. 28.1 + 1 + 4 =
  29. 29.2 + 3 + 5 =
  30. 30.Meera has 2 marbles and gets 4 marbles more. How many marbles does Meera have now?
  31. 31.1 + 3 + 10 =
  32. 32.Diya has 15 crayons and gets 1 crayon more. How many crayons does Diya have now?
  33. 33.There are 3 blue balloons and 2 red balloons. How many balloons are there in all?
  34. 34.There are 3 green kites and 8 red kites. How many kites are there in all?
  35. 35.There are 3 red balloons and 11 yellow balloons. How many balloons are there in all?
  36. 36.Ishaan has 5 balls and gets 4 balls more. How many balls does Ishaan have now?
  37. 37.7 + 7 =
  38. 38.1 + 1 + 1 =
  39. 39.There are 7 red flowers and 4 blue flowers. How many flowers are there in all?
  40. 40.There are 5 pink crayons and 4 green crayons. How many crayons are there in all?

Answer key

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

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