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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 635 · 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 3 pink kites and 4 yellow kites. How many kites are there in all?
  2. 2.Sneha has 8 laddoos and gets 1 laddoo more. How many laddoos does Sneha have now?
  3. 3.Kabir has 9 laddoos and gets 5 laddoos more. How many laddoos does Kabir have now?
  4. 4.There are 9 red beads and 7 white beads. How many beads are there in all?
  5. 5.? + 12 = 20
  6. 6.Aarav has 13 laddoos and gets 3 laddoos more. How many laddoos does Aarav have now?
  7. 7.There are 9 yellow beads and 8 red beads. How many beads are there in all?
  8. 8.Farhan has 2 kites and gets 1 kite more. How many kites does Farhan have now?
  9. 9.? + 2 = 3
  10. 10.5 + 14 =
  11. 11.Zoya has 5 laddoos and gets 6 laddoos more. How many laddoos does Zoya have now?
  12. 12.There are 4 yellow flowers and 12 white flowers. How many flowers are there in all?
  13. 13.? + 4 = 7
  14. 14.10 + 2 =
  15. 15.There are 3 yellow beads and 4 green beads. How many beads are there in all?
  16. 16.1 + ? = 5
  17. 17.? + 4 = 9
  18. 18.4 + ? = 10
  19. 19.? + 3 = 18
  20. 20.6 + 8 + 2 =
  21. 21.12 + 4 =
  22. 22.Farhan has 3 crayons and gets 10 crayons more. How many crayons does Farhan have now?
  23. 23.? + 1 = 3
  24. 24.There are 3 blue beads and 16 yellow beads. How many beads are there in all?
  25. 25.1 + 3 + 14 =
  26. 26.5 + 2 =
  27. 27.2 + 8 + 1 =
  28. 28.1 + 7 =
  29. 29.2 + 6 + 11 =
  30. 30.There are 9 yellow crayons and 5 green crayons. How many crayons are there in all?
  31. 31.There are 6 white balls and 7 red balls. How many balls are there in all?
  32. 32.14 + ? = 16
  33. 33.There are 4 yellow kites and 3 pink kites. How many kites are there in all?
  34. 34.There are 4 yellow crayons and 9 pink crayons. How many crayons are there in all?
  35. 35.Dev has 3 marbles and gets 17 marbles more. How many marbles does Dev have now?
  36. 36.Ishaan has 2 kites and gets 15 kites more. How many kites does Ishaan have now?
  37. 37.There are 9 yellow balloons and 8 blue balloons. How many balloons are there in all?
  38. 38.4 + 6 + 10 =
  39. 39.9 + ? = 10
  40. 40.8 + 11 =

Answer key

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

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