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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 513 · 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.There are 4 white flowers and 4 pink flowers. How many flowers are there in all?
  2. 2.There are 4 blue kites and 8 red kites. How many kites are there in all?
  3. 3.Diya has 3 mangoes and gets 11 mangoes more. How many mangoes does Diya have now?
  4. 4.3 + 4 =
  5. 5.Gurpreet has 3 marbles and gets 2 marbles more. How many marbles does Gurpreet have now?
  6. 6.There are 8 white beads and 3 blue beads. How many beads are there in all?
  7. 7.? + 1 = 13
  8. 8.4 + 7 + 3 =
  9. 9.Nisha has 15 crayons and gets 2 crayons more. How many crayons does Nisha have now?
  10. 10.10 + 2 =
  11. 11.There are 3 blue flowers and 4 pink flowers. How many flowers are there in all?
  12. 12.There are 6 yellow crayons and 5 white crayons. How many crayons are there in all?
  13. 13.There are 5 blue balls and 10 red balls. How many balls are there in all?
  14. 14.5 + 1 + 13 =
  15. 15.6 + 13 =
  16. 16.Nisha has 5 balls and gets 14 balls more. How many balls does Nisha have now?
  17. 17.There are 10 blue balloons and 10 red balloons. How many balloons are there in all?
  18. 18.? + 2 = 18
  19. 19.4 + 3 + 5 =
  20. 20.7 + 10 =
  21. 21.15 + 1 =
  22. 22.Meera has 9 balls and gets 6 balls more. How many balls does Meera have now?
  23. 23.Ishaan has 5 crayons and gets 11 crayons more. How many crayons does Ishaan have now?
  24. 24.10 + 7 =
  25. 25.Nisha has 6 crayons and gets 9 crayons more. How many crayons does Nisha have now?
  26. 26.8 + ? = 15
  27. 27.8 + 2 + 1 =
  28. 28.11 + 5 =
  29. 29.There are 6 pink flowers and 4 yellow flowers. How many flowers are there in all?
  30. 30.Manav has 4 pencils and gets 15 pencils more. How many pencils does Manav have now?
  31. 31.There are 2 yellow balloons and 9 green balloons. How many balloons are there in all?
  32. 32.4 + 6 =
  33. 33.12 + 5 =
  34. 34.? + 14 = 18
  35. 35.There are 3 white kites and 9 red kites. How many kites are there in all?
  36. 36.1 + ? = 3
  37. 37.Pooja has 4 books and gets 8 books more. How many books does Pooja have now?
  38. 38.? + 8 = 15
  39. 39.15 + 5 =
  40. 40.2 + 17 =

Answer key

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

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