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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 48 · 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.Kabir has 11 balls and gets 4 balls more. How many balls does Kabir have now?
  2. 2.Arjun has 15 mangoes and gets 2 mangoes more. How many mangoes does Arjun have now?
  3. 3.2 + 1 + 7 =
  4. 4.There are 10 red beads and 5 yellow beads. How many beads are there in all?
  5. 5.? + 3 = 11
  6. 6.Ananya has 9 laddoos and gets 5 laddoos more. How many laddoos does Ananya have now?
  7. 7.There are 8 blue balls and 10 pink balls. How many balls are there in all?
  8. 8.2 + 14 =
  9. 9.8 + 6 =
  10. 10.Tara has 12 bananas and gets 7 bananas more. How many bananas does Tara have now?
  11. 11.16 + 4 =
  12. 12.11 + 8 =
  13. 13.5 + 1 + 3 =
  14. 14.1 + ? = 6
  15. 15.Priya has 8 flowers and gets 12 flowers more. How many flowers does Priya have now?
  16. 16.6 + 5 =
  17. 17.? + 3 = 5
  18. 18.There are 6 pink balloons and 6 green balloons. How many balloons are there in all?
  19. 19.? + 5 = 14
  20. 20.12 + 6 =
  21. 21.12 + 7 =
  22. 22.12 + 2 =
  23. 23.? + 19 = 20
  24. 24.There are 9 blue flowers and 6 red flowers. How many flowers are there in all?
  25. 25.12 + 3 =
  26. 26.1 + 1 + 9 =
  27. 27.13 + 4 =
  28. 28.1 + 2 + 8 =
  29. 29.6 + 4 =
  30. 30.? + 4 = 16
  31. 31.There are 2 pink beads and 6 yellow beads. How many beads are there in all?
  32. 32.1 + 3 + 1 =
  33. 33.6 + 7 =
  34. 34.? + 10 = 14
  35. 35.Tara has 4 kites and gets 15 kites more. How many kites does Tara have now?
  36. 36.Aarav has 2 kites and gets 6 kites more. How many kites does Aarav have now?
  37. 37.2 + 1 + 1 =
  38. 38.There are 9 red kites and 2 blue kites. How many kites are there in all?
  39. 39.Kabir has 2 laddoos and gets 5 laddoos more. How many laddoos does Kabir have now?
  40. 40.There are 3 red balloons and 11 white balloons. How many balloons are there in all?

Answer key

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

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