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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 773 · 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 6 red beads and 2 pink beads. How many beads are there in all?
  2. 2.8 + 4 + 5 =
  3. 3.18 + 1 =
  4. 4.Rohan has 15 laddoos and gets 1 laddoo more. How many laddoos does Rohan have now?
  5. 5.? + 9 = 15
  6. 6.1 + 8 + 2 =
  7. 7.Rohan has 3 mangoes and gets 4 mangoes more. How many mangoes does Rohan have now?
  8. 8.4 + 9 =
  9. 9.There are 10 yellow kites and 7 green kites. How many kites are there in all?
  10. 10.8 + 4 =
  11. 11.2 + 6 + 11 =
  12. 12.? + 6 = 14
  13. 13.Saanvi has 12 bananas and gets 6 bananas more. How many bananas does Saanvi have now?
  14. 14.2 + ? = 12
  15. 15.3 + ? = 10
  16. 16.? + 4 = 10
  17. 17.There are 3 yellow flowers and 9 green flowers. How many flowers are there in all?
  18. 18.3 + 1 + 7 =
  19. 19.There are 6 green balls and 8 red balls. How many balls are there in all?
  20. 20.5 + 1 + 4 =
  21. 21.There are 5 pink flowers and 7 blue flowers. How many flowers are there in all?
  22. 22.There are 10 pink balls and 4 green balls. How many balls are there in all?
  23. 23.16 + 4 =
  24. 24.There are 2 red balloons and 15 green balloons. How many balloons are there in all?
  25. 25.2 + ? = 16
  26. 26.Saanvi has 7 shells and gets 6 shells more. How many shells does Saanvi have now?
  27. 27.There are 12 yellow beads and 4 pink beads. How many beads are there in all?
  28. 28.There are 4 white flowers and 16 blue flowers. How many flowers are there in all?
  29. 29.3 + 4 + 1 =
  30. 30.Priya has 10 balloons and gets 9 balloons more. How many balloons does Priya have now?
  31. 31.19 + 1 =
  32. 32.Nisha has 13 flowers and gets 2 flowers more. How many flowers does Nisha have now?
  33. 33.There are 4 red beads and 10 green beads. How many beads are there in all?
  34. 34.? + 3 = 5
  35. 35.6 + 12 =
  36. 36.9 + 5 =
  37. 37.6 + 5 =
  38. 38.1 + 2 + 13 =
  39. 39.9 + 7 =
  40. 40.There are 10 green balloons and 5 blue balloons. How many balloons are there in all?

Answer key

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

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