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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 976 · 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 red beads and 10 green beads. How many beads are there in all?
  2. 2.5 + ? = 7
  3. 3.1 + ? = 12
  4. 4.19 + 1 =
  5. 5.14 + 3 =
  6. 6.8 + 8 + 4 =
  7. 7.13 + 5 =
  8. 8.17 + 1 =
  9. 9.Vivaan has 13 pencils and gets 1 pencil more. How many pencils does Vivaan have now?
  10. 10.Tara has 6 mangoes and gets 2 mangoes more. How many mangoes does Tara have now?
  11. 11.There are 9 red kites and 10 white kites. How many kites are there in all?
  12. 12.Lakshmi has 6 laddoos and gets 9 laddoos more. How many laddoos does Lakshmi have now?
  13. 13.1 + 7 =
  14. 14.7 + 1 + 11 =
  15. 15.2 + 3 + 3 =
  16. 16.? + 15 = 20
  17. 17.Priya has 10 pencils and gets 3 pencils more. How many pencils does Priya have now?
  18. 18.1 + ? = 5
  19. 19.6 + ? = 9
  20. 20.? + 3 = 11
  21. 21.? + 5 = 8
  22. 22.Isha has 14 mangoes and gets 1 mango more. How many mangoes does Isha have now?
  23. 23.? + 4 = 14
  24. 24.There are 2 white beads and 3 green beads. How many beads are there in all?
  25. 25.Sneha has 5 laddoos and gets 4 laddoos more. How many laddoos does Sneha have now?
  26. 26.1 + 2 =
  27. 27.Riya has 14 flowers and gets 6 flowers more. How many flowers does Riya have now?
  28. 28.5 + ? = 14
  29. 29.1 + ? = 4
  30. 30.3 + 7 + 5 =
  31. 31.1 + ? = 3
  32. 32.12 + 7 =
  33. 33.12 + 2 =
  34. 34.10 + ? = 17
  35. 35.9 + ? = 13
  36. 36.3 + 1 + 8 =
  37. 37.3 + 7 + 4 =
  38. 38.Dev has 14 laddoos and gets 1 laddoo more. How many laddoos does Dev have now?
  39. 39.Gurpreet has 4 balls and gets 15 balls more. How many balls does Gurpreet have now?
  40. 40.There are 11 white crayons and 6 red crayons. How many crayons are there in all?

Answer key

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

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