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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 895 · 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. 1.2 + ? = 5
  2. 2.Diya has 9 laddoos and gets 2 laddoos more. How many laddoos does Diya have now?
  3. 3.8 + ? = 10
  4. 4.2 + 6 + 11 =
  5. 5.15 + 1 =
  6. 6.There are 3 white flowers and 7 red flowers. How many flowers are there in all?
  7. 7.There are 10 pink balls and 5 blue balls. How many balls are there in all?
  8. 8.7 + 13 =
  9. 9.7 + 7 + 2 =
  10. 10.Priya has 2 pencils and gets 17 pencils more. How many pencils does Priya have now?
  11. 11.17 + 1 =
  12. 12.3 + 1 =
  13. 13.Pooja has 3 marbles and gets 12 marbles more. How many marbles does Pooja have now?
  14. 14.There are 10 blue kites and 8 red kites. How many kites are there in all?
  15. 15.There are 7 pink balloons and 6 white balloons. How many balloons are there in all?
  16. 16.Sneha has 3 mangoes and gets 1 mango more. How many mangoes does Sneha have now?
  17. 17.Priya has 2 pencils and gets 15 pencils more. How many pencils does Priya have now?
  18. 18.2 + 3 + 2 =
  19. 19.13 + ? = 17
  20. 20.There are 3 yellow crayons and 13 blue crayons. How many crayons are there in all?
  21. 21.Kabir has 4 kites and gets 1 kite more. How many kites does Kabir have now?
  22. 22.There are 8 green kites and 11 red kites. How many kites are there in all?
  23. 23.5 + ? = 6
  24. 24.There are 12 green balloons and 7 red balloons. How many balloons are there in all?
  25. 25.Isha has 7 crayons and gets 2 crayons more. How many crayons does Isha have now?
  26. 26.There are 11 blue beads and 7 green beads. How many beads are there in all?
  27. 27.There are 6 green balloons and 9 red balloons. How many balloons are there in all?
  28. 28.1 + 4 =
  29. 29.Rahul has 14 balloons and gets 1 balloon more. How many balloons does Rahul have now?
  30. 30.3 + 15 =
  31. 31.Kabir has 6 balls and gets 5 balls more. How many balls does Kabir have now?
  32. 32.Rahul has 11 laddoos and gets 8 laddoos more. How many laddoos does Rahul have now?
  33. 33.There are 7 red balls and 8 blue balls. How many balls are there in all?
  34. 34.5 + 6 + 5 =
  35. 35.2 + ? = 9
  36. 36.8 + 4 + 4 =
  37. 37.There are 9 blue balls and 4 pink balls. How many balls are there in all?
  38. 38.4 + 15 =
  39. 39.2 + ? = 6
  40. 40.Farhan has 5 laddoos and gets 3 laddoos more. How many laddoos does Farhan have now?

Answer key

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

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