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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 469 · 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 yellow flowers and 12 blue flowers. How many flowers are there in all?
  2. 2.Nisha has 14 pencils and gets 4 pencils more. How many pencils does Nisha have now?
  3. 3.2 + 1 + 16 =
  4. 4.14 + 1 =
  5. 5.? + 6 = 12
  6. 6.3 + ? = 11
  7. 7.4 + 13 =
  8. 8.2 + 8 + 3 =
  9. 9.1 + 3 + 3 =
  10. 10.There are 7 blue flowers and 13 white flowers. How many flowers are there in all?
  11. 11.There are 9 red crayons and 6 white crayons. How many crayons are there in all?
  12. 12.Kavya has 2 pencils and gets 2 pencils more. How many pencils does Kavya have now?
  13. 13.Dev has 10 balls and gets 9 balls more. How many balls does Dev have now?
  14. 14.Saanvi has 5 laddoos and gets 11 laddoos more. How many laddoos does Saanvi have now?
  15. 15.Nisha has 7 laddoos and gets 9 laddoos more. How many laddoos does Nisha have now?
  16. 16.There are 9 red beads and 3 blue beads. How many beads are there in all?
  17. 17.5 + 5 + 7 =
  18. 18.Meera has 4 shells and gets 14 shells more. How many shells does Meera have now?
  19. 19.14 + 2 =
  20. 20.There are 2 yellow beads and 11 white beads. How many beads are there in all?
  21. 21.8 + 3 + 4 =
  22. 22.Ishaan has 15 kites and gets 5 kites more. How many kites does Ishaan have now?
  23. 23.9 + 2 =
  24. 24.6 + 13 =
  25. 25.Joseph has 13 flowers and gets 2 flowers more. How many flowers does Joseph have now?
  26. 26.There are 9 pink kites and 11 yellow kites. How many kites are there in all?
  27. 27.5 + 3 =
  28. 28.1 + 18 =
  29. 29.Joseph has 12 balloons and gets 5 balloons more. How many balloons does Joseph have now?
  30. 30.Joseph has 3 flowers and gets 14 flowers more. How many flowers does Joseph have now?
  31. 31.4 + 8 + 4 =
  32. 32.4 + 14 =
  33. 33.2 + ? = 5
  34. 34.There are 3 yellow balls and 15 red balls. How many balls are there in all?
  35. 35.3 + ? = 5
  36. 36.Arjun has 13 balls and gets 4 balls more. How many balls does Arjun have now?
  37. 37.7 + 4 + 3 =
  38. 38.8 + 6 + 4 =
  39. 39.Joseph has 6 shells and gets 1 shell more. How many shells does Joseph have now?
  40. 40.7 + 6 + 6 =

Answer key

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

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