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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 314 · 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. 1.9 + 6 =
  2. 2.12 + 2 =
  3. 3.There are 12 white balls and 7 pink balls. How many balls are there in all?
  4. 4.4 + ? = 7
  5. 5.3 + 1 =
  6. 6.There are 11 pink beads and 2 green beads. How many beads are there in all?
  7. 7.4 + 3 =
  8. 8.7 + 2 =
  9. 9.Aditya has 6 marbles and gets 2 marbles more. How many marbles does Aditya have now?
  10. 10.9 + ? = 16
  11. 11.Saanvi has 5 pencils and gets 14 pencils more. How many pencils does Saanvi have now?
  12. 12.14 + 2 =
  13. 13.4 + 1 + 11 =
  14. 14.6 + ? = 19
  15. 15.Farhan has 5 kites and gets 8 kites more. How many kites does Farhan have now?
  16. 16.? + 2 = 7
  17. 17.1 + 6 + 11 =
  18. 18.Meera has 12 bananas and gets 6 bananas more. How many bananas does Meera have now?
  19. 19.Kavya has 9 balloons and gets 3 balloons more. How many balloons does Kavya have now?
  20. 20.There are 12 pink kites and 8 white kites. How many kites are there in all?
  21. 21.4 + 4 =
  22. 22.2 + 10 =
  23. 23.5 + 5 =
  24. 24.8 + 6 + 1 =
  25. 25.2 + 2 + 2 =
  26. 26.Pooja has 11 shells and gets 1 shell more. How many shells does Pooja have now?
  27. 27.1 + 5 + 3 =
  28. 28.Aarav has 2 mangoes and gets 4 mangoes more. How many mangoes does Aarav have now?
  29. 29.15 + 2 =
  30. 30.3 + 17 =
  31. 31.Dev has 10 shells and gets 6 shells more. How many shells does Dev have now?
  32. 32.10 + 4 =
  33. 33.2 + 8 =
  34. 34.Kavya has 13 balloons and gets 6 balloons more. How many balloons does Kavya have now?
  35. 35.? + 3 = 4
  36. 36.Rohan has 14 marbles and gets 5 marbles more. How many marbles does Rohan have now?
  37. 37.3 + 4 =
  38. 38.1 + ? = 3
  39. 39.There are 2 blue balloons and 9 pink balloons. How many balloons are there in all?
  40. 40.? + 3 = 7

Answer key

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

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