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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 352 · 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 3 yellow beads and 16 green beads. How many beads are there in all?
  2. 2.15 + 5 =
  3. 3.2 + ? = 10
  4. 4.There are 12 blue balls and 3 white balls. How many balls are there in all?
  5. 5.Lakshmi has 4 mangoes and gets 10 mangoes more. How many mangoes does Lakshmi have now?
  6. 6.? + 5 = 7
  7. 7.Kabir has 12 balls and gets 4 balls more. How many balls does Kabir have now?
  8. 8.1 + 11 =
  9. 9.4 + 8 =
  10. 10.There are 11 pink kites and 7 blue kites. How many kites are there in all?
  11. 11.? + 2 = 13
  12. 12.Isha has 14 marbles and gets 1 marble more. How many marbles does Isha have now?
  13. 13.? + 8 = 17
  14. 14.Saanvi has 5 pencils and gets 7 pencils more. How many pencils does Saanvi have now?
  15. 15.Zoya has 5 pencils and gets 9 pencils more. How many pencils does Zoya have now?
  16. 16.1 + ? = 3
  17. 17.Pooja has 6 flowers and gets 3 flowers more. How many flowers does Pooja have now?
  18. 18.3 + 2 + 9 =
  19. 19.8 + 5 =
  20. 20.18 + 1 =
  21. 21.4 + 3 =
  22. 22.6 + 4 =
  23. 23.There are 8 green flowers and 10 yellow flowers. How many flowers are there in all?
  24. 24.1 + 7 + 11 =
  25. 25.1 + 8 + 10 =
  26. 26.There are 4 yellow flowers and 8 red flowers. How many flowers are there in all?
  27. 27.? + 1 = 3
  28. 28.16 + ? = 17
  29. 29.? + 3 = 8
  30. 30.Vivaan has 6 laddoos and gets 9 laddoos more. How many laddoos does Vivaan have now?
  31. 31.Gurpreet has 5 marbles and gets 6 marbles more. How many marbles does Gurpreet have now?
  32. 32.9 + ? = 11
  33. 33.Priya has 5 marbles and gets 5 marbles more. How many marbles does Priya have now?
  34. 34.1 + 6 + 2 =
  35. 35.2 + 7 =
  36. 36.There are 9 pink beads and 9 blue beads. How many beads are there in all?
  37. 37.10 + 2 =
  38. 38.There are 6 yellow balls and 11 blue balls. How many balls are there in all?
  39. 39.There are 9 pink beads and 4 red beads. How many beads are there in all?
  40. 40.15 + 3 =

Answer key

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

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