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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 336 · 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 11 pink balls and 4 red balls. How many balls are there in all?
  2. 2.Rahul has 3 pencils and gets 2 pencils more. How many pencils does Rahul have now?
  3. 3.10 + 1 =
  4. 4.3 + 2 =
  5. 5.There are 7 blue crayons and 4 red crayons. How many crayons are there in all?
  6. 6.Nisha has 5 bananas and gets 13 bananas more. How many bananas does Nisha have now?
  7. 7.4 + 13 =
  8. 8.Saanvi has 13 balloons and gets 2 balloons more. How many balloons does Saanvi have now?
  9. 9.There are 10 green kites and 10 pink kites. How many kites are there in all?
  10. 10.? + 4 = 5
  11. 11.2 + 5 =
  12. 12.Priya has 11 mangoes and gets 7 mangoes more. How many mangoes does Priya have now?
  13. 13.1 + 18 =
  14. 14.There are 11 pink kites and 2 blue kites. How many kites are there in all?
  15. 15.7 + 2 + 11 =
  16. 16.Kabir has 4 pencils and gets 8 pencils more. How many pencils does Kabir have now?
  17. 17.There are 4 pink balloons and 11 blue balloons. How many balloons are there in all?
  18. 18.4 + 4 =
  19. 19.There are 9 white beads and 7 blue beads. How many beads are there in all?
  20. 20.5 + 5 + 9 =
  21. 21.? + 16 = 17
  22. 22.1 + 2 + 4 =
  23. 23.There are 10 red kites and 7 blue kites. How many kites are there in all?
  24. 24.Tara has 11 balloons and gets 9 balloons more. How many balloons does Tara have now?
  25. 25.8 + 4 + 4 =
  26. 26.16 + 2 =
  27. 27.Gurpreet has 14 balls and gets 5 balls more. How many balls does Gurpreet have now?
  28. 28.Ishaan has 13 crayons and gets 7 crayons more. How many crayons does Ishaan have now?
  29. 29.8 + 2 =
  30. 30.3 + 4 + 3 =
  31. 31.2 + 1 =
  32. 32.Rohan has 5 flowers and gets 5 flowers more. How many flowers does Rohan have now?
  33. 33.1 + 4 + 5 =
  34. 34.Gurpreet has 10 laddoos and gets 6 laddoos more. How many laddoos does Gurpreet have now?
  35. 35.Ishaan has 15 laddoos and gets 5 laddoos more. How many laddoos does Ishaan have now?
  36. 36.There are 12 white balloons and 5 blue balloons. How many balloons are there in all?
  37. 37.11 + 1 =
  38. 38.8 + 1 =
  39. 39.5 + 7 + 6 =
  40. 40.Rohan has 14 laddoos and gets 4 laddoos more. How many laddoos does Rohan have now?

Answer key

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

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