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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 534 · 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.Vivaan has 3 kites and gets 3 kites more. How many kites does Vivaan have now?
  2. 2.1 + ? = 9
  3. 3.There are 11 red kites and 2 white kites. How many kites are there in all?
  4. 4.3 + 9 =
  5. 5.Dev has 4 crayons and gets 2 crayons more. How many crayons does Dev have now?
  6. 6.6 + 8 + 5 =
  7. 7.Riya has 2 pencils and gets 12 pencils more. How many pencils does Riya have now?
  8. 8.Saanvi has 11 shells and gets 5 shells more. How many shells does Saanvi have now?
  9. 9.Vivaan has 14 crayons and gets 2 crayons more. How many crayons does Vivaan have now?
  10. 10.There are 10 green beads and 4 yellow beads. How many beads are there in all?
  11. 11.? + 13 = 19
  12. 12.5 + 5 =
  13. 13.1 + 18 =
  14. 14.4 + 4 + 4 =
  15. 15.8 + 11 =
  16. 16.1 + ? = 4
  17. 17.Tara has 5 pencils and gets 15 pencils more. How many pencils does Tara have now?
  18. 18.? + 3 = 4
  19. 19.Dev has 15 pencils and gets 1 pencil more. How many pencils does Dev have now?
  20. 20.Kabir has 14 marbles and gets 6 marbles more. How many marbles does Kabir have now?
  21. 21.Farhan has 12 marbles and gets 5 marbles more. How many marbles does Farhan have now?
  22. 22.? + 15 = 17
  23. 23.? + 4 = 13
  24. 24.17 + 3 =
  25. 25.7 + ? = 15
  26. 26.8 + 8 + 1 =
  27. 27.14 + 3 =
  28. 28.4 + 3 =
  29. 29.8 + 2 + 4 =
  30. 30.9 + 9 =
  31. 31.3 + 2 + 2 =
  32. 32.There are 3 red balloons and 17 yellow balloons. How many balloons are there in all?
  33. 33.There are 10 pink flowers and 5 blue flowers. How many flowers are there in all?
  34. 34.There are 4 pink beads and 16 red beads. How many beads are there in all?
  35. 35.There are 9 pink flowers and 4 red flowers. How many flowers are there in all?
  36. 36.? + 11 = 13
  37. 37.Saanvi has 13 laddoos and gets 4 laddoos more. How many laddoos does Saanvi have now?
  38. 38.1 + 8 + 1 =
  39. 39.3 + 6 =
  40. 40.2 + 4 + 8 =

Answer key

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

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