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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 429 · 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. 1.7 + 5 + 1 =
  2. 2.There are 6 pink balloons and 7 white balloons. How many balloons are there in all?
  3. 3.1 + 1 + 9 =
  4. 4.Sneha has 6 bananas and gets 3 bananas more. How many bananas does Sneha have now?
  5. 5.There are 4 blue balls and 14 white balls. How many balls are there in all?
  6. 6.13 + 7 =
  7. 7.8 + 2 + 5 =
  8. 8.8 + 4 =
  9. 9.9 + ? = 20
  10. 10.There are 11 pink crayons and 7 green crayons. How many crayons are there in all?
  11. 11.1 + 16 =
  12. 12.There are 8 red kites and 4 green kites. How many kites are there in all?
  13. 13.1 + 6 =
  14. 14.Rohan has 2 balloons and gets 15 balloons more. How many balloons does Rohan have now?
  15. 15.12 + 8 =
  16. 16.14 + 3 =
  17. 17.Ananya has 8 balloons and gets 3 balloons more. How many balloons does Ananya have now?
  18. 18.4 + 12 =
  19. 19.Farhan has 9 marbles and gets 5 marbles more. How many marbles does Farhan have now?
  20. 20.Karan has 5 crayons and gets 15 crayons more. How many crayons does Karan have now?
  21. 21.8 + 3 + 2 =
  22. 22.7 + 2 =
  23. 23.There are 4 yellow balls and 5 white balls. How many balls are there in all?
  24. 24.? + 1 = 4
  25. 25.5 + 4 + 9 =
  26. 26.4 + 11 =
  27. 27.4 + 7 =
  28. 28.Lakshmi has 3 shells and gets 16 shells more. How many shells does Lakshmi have now?
  29. 29.Kavya has 12 pencils and gets 8 pencils more. How many pencils does Kavya have now?
  30. 30.Kabir has 10 balls and gets 6 balls more. How many balls does Kabir have now?
  31. 31.Saanvi has 8 kites and gets 3 kites more. How many kites does Saanvi have now?
  32. 32.14 + 4 =
  33. 33.? + 1 = 7
  34. 34.Tara has 7 mangoes and gets 5 mangoes more. How many mangoes does Tara have now?
  35. 35.Priya has 9 crayons and gets 8 crayons more. How many crayons does Priya have now?
  36. 36.17 + 2 =
  37. 37.2 + 7 + 5 =
  38. 38.There are 7 white beads and 4 green beads. How many beads are there in all?
  39. 39.There are 5 red beads and 5 pink beads. How many beads are there in all?
  40. 40.Tara has 14 bananas and gets 4 bananas more. How many bananas does Tara have now?

Answer key

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

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