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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 613 · 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.Arjun has 7 bananas and gets 5 bananas more. How many bananas does Arjun have now?
  2. 2.Sneha has 6 mangoes and gets 10 mangoes more. How many mangoes does Sneha have now?
  3. 3.Joseph has 12 books and gets 6 books more. How many books does Joseph have now?
  4. 4.17 + 3 =
  5. 5.3 + 5 + 2 =
  6. 6.Zoya has 8 shells and gets 3 shells more. How many shells does Zoya have now?
  7. 7.There are 5 pink crayons and 13 red crayons. How many crayons are there in all?
  8. 8.There are 10 blue crayons and 2 red crayons. How many crayons are there in all?
  9. 9.18 + 1 =
  10. 10.There are 4 white balloons and 3 blue balloons. How many balloons are there in all?
  11. 11.There are 9 blue crayons and 2 green crayons. How many crayons are there in all?
  12. 12.9 + 5 =
  13. 13.There are 2 pink balloons and 17 red balloons. How many balloons are there in all?
  14. 14.There are 2 green balls and 3 white balls. How many balls are there in all?
  15. 15.Vivaan has 13 crayons and gets 1 crayon more. How many crayons does Vivaan have now?
  16. 16.5 + 7 + 2 =
  17. 17.? + 17 = 19
  18. 18.There are 5 blue beads and 6 red beads. How many beads are there in all?
  19. 19.There are 9 white kites and 7 green kites. How many kites are there in all?
  20. 20.? + 6 = 15
  21. 21.19 + 1 =
  22. 22.? + 4 = 8
  23. 23.There are 11 white flowers and 5 pink flowers. How many flowers are there in all?
  24. 24.Isha has 15 laddoos and gets 4 laddoos more. How many laddoos does Isha have now?
  25. 25.Diya has 14 mangoes and gets 2 mangoes more. How many mangoes does Diya have now?
  26. 26.13 + 6 =
  27. 27.16 + 4 =
  28. 28.4 + 7 + 3 =
  29. 29.3 + ? = 5
  30. 30.18 + 2 =
  31. 31.8 + 5 + 7 =
  32. 32.There are 8 pink balloons and 11 green balloons. How many balloons are there in all?
  33. 33.6 + 6 + 6 =
  34. 34.? + 12 = 14
  35. 35.There are 7 pink kites and 12 green kites. How many kites are there in all?
  36. 36.11 + 4 =
  37. 37.6 + 3 =
  38. 38.There are 4 green flowers and 7 red flowers. How many flowers are there in all?
  39. 39.There are 12 red balloons and 5 green balloons. How many balloons are there in all?
  40. 40.Rohan has 14 marbles and gets 3 marbles more. How many marbles does Rohan have now?

Answer key

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

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