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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 100 · 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. 1.6 + 2 + 10 =
  2. 2.Aditya has 13 balls and gets 4 balls more. How many balls does Aditya have now?
  3. 3.7 + 2 =
  4. 4.8 + 3 + 6 =
  5. 5.Meera has 7 balloons and gets 3 balloons more. How many balloons does Meera have now?
  6. 6.8 + 6 + 1 =
  7. 7.Zoya has 2 mangoes and gets 11 mangoes more. How many mangoes does Zoya have now?
  8. 8.There are 5 red beads and 14 yellow beads. How many beads are there in all?
  9. 9.2 + ? = 3
  10. 10.? + 6 = 13
  11. 11.5 + 5 + 5 =
  12. 12.2 + ? = 6
  13. 13.3 + 2 + 12 =
  14. 14.There are 11 pink kites and 8 red kites. How many kites are there in all?
  15. 15.2 + 2 + 6 =
  16. 16.Tara has 2 flowers and gets 12 flowers more. How many flowers does Tara have now?
  17. 17.3 + 6 + 5 =
  18. 18.8 + 7 =
  19. 19.1 + 2 + 15 =
  20. 20.There are 4 yellow flowers and 2 blue flowers. How many flowers are there in all?
  21. 21.There are 5 white balloons and 4 blue balloons. How many balloons are there in all?
  22. 22.15 + 3 =
  23. 23.5 + 3 + 1 =
  24. 24.Manav has 6 laddoos and gets 2 laddoos more. How many laddoos does Manav have now?
  25. 25.4 + 12 =
  26. 26.1 + 7 + 11 =
  27. 27.? + 1 = 4
  28. 28.? + 5 = 9
  29. 29.There are 10 green beads and 6 pink beads. How many beads are there in all?
  30. 30.There are 4 yellow balloons and 14 blue balloons. How many balloons are there in all?
  31. 31.There are 9 green flowers and 4 pink flowers. How many flowers are there in all?
  32. 32.8 + 8 =
  33. 33.1 + ? = 20
  34. 34.Kabir has 3 laddoos and gets 5 laddoos more. How many laddoos does Kabir have now?
  35. 35.There are 10 white crayons and 3 blue crayons. How many crayons are there in all?
  36. 36.Zoya has 11 kites and gets 8 kites more. How many kites does Zoya have now?
  37. 37.Meera has 3 flowers and gets 14 flowers more. How many flowers does Meera have now?
  38. 38.6 + 8 =
  39. 39.There are 2 blue crayons and 10 yellow crayons. How many crayons are there in all?
  40. 40.8 + 8 + 2 =

Answer key

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

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