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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 929 · 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.Gurpreet has 13 pencils and gets 2 pencils more. How many pencils does Gurpreet have now?
  2. 2.There are 12 white beads and 4 blue beads. How many beads are there in all?
  3. 3.There are 12 red balls and 2 green balls. How many balls are there in all?
  4. 4.Saanvi has 13 balloons and gets 2 balloons more. How many balloons does Saanvi have now?
  5. 5.11 + 4 =
  6. 6.7 + 6 + 1 =
  7. 7.Joseph has 12 kites and gets 2 kites more. How many kites does Joseph have now?
  8. 8.There are 11 blue balls and 6 pink balls. How many balls are there in all?
  9. 9.1 + 14 =
  10. 10.Kavya has 9 marbles and gets 3 marbles more. How many marbles does Kavya have now?
  11. 11.1 + 1 + 3 =
  12. 12.2 + 8 + 1 =
  13. 13.6 + 8 + 1 =
  14. 14.There are 11 yellow crayons and 5 green crayons. How many crayons are there in all?
  15. 15.12 + 1 =
  16. 16.Riya has 7 pencils and gets 2 pencils more. How many pencils does Riya have now?
  17. 17.2 + 3 + 7 =
  18. 18.18 + 1 =
  19. 19.16 + 1 =
  20. 20.1 + 17 =
  21. 21.1 + 8 + 8 =
  22. 22.Dev has 12 pencils and gets 2 pencils more. How many pencils does Dev have now?
  23. 23.There are 12 green balloons and 2 red balloons. How many balloons are there in all?
  24. 24.There are 10 red flowers and 8 blue flowers. How many flowers are there in all?
  25. 25.2 + 3 + 1 =
  26. 26.? + 4 = 20
  27. 27.8 + 1 =
  28. 28.There are 11 yellow crayons and 8 white crayons. How many crayons are there in all?
  29. 29.5 + ? = 9
  30. 30.1 + ? = 16
  31. 31.Aarav has 4 balloons and gets 15 balloons more. How many balloons does Aarav have now?
  32. 32.1 + ? = 5
  33. 33.7 + 6 =
  34. 34.16 + ? = 18
  35. 35.2 + 4 + 1 =
  36. 36.7 + 9 =
  37. 37.2 + ? = 6
  38. 38.1 + ? = 4
  39. 39.Joseph has 14 laddoos and gets 2 laddoos more. How many laddoos does Joseph have now?
  40. 40.? + 2 = 6

Answer key

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

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