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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 709 · 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 14 kites and gets 6 kites more. How many kites does Vivaan have now?
  2. 2.There are 12 red balls and 7 pink balls. How many balls are there in all?
  3. 3.2 + 6 + 12 =
  4. 4.Dev has 4 mangoes and gets 2 mangoes more. How many mangoes does Dev have now?
  5. 5.8 + 3 + 7 =
  6. 6.Zoya has 11 pencils and gets 4 pencils more. How many pencils does Zoya have now?
  7. 7.? + 2 = 11
  8. 8.6 + 2 =
  9. 9.? + 1 = 3
  10. 10.There are 11 yellow crayons and 2 pink crayons. How many crayons are there in all?
  11. 11.5 + 3 + 10 =
  12. 12.8 + 6 =
  13. 13.Rahul has 14 balls and gets 1 ball more. How many balls does Rahul have now?
  14. 14.9 + 7 =
  15. 15.There are 12 white crayons and 6 pink crayons. How many crayons are there in all?
  16. 16.There are 12 red balls and 4 pink balls. How many balls are there in all?
  17. 17.3 + 13 =
  18. 18.There are 8 pink flowers and 8 yellow flowers. How many flowers are there in all?
  19. 19.Vivaan has 13 bananas and gets 7 bananas more. How many bananas does Vivaan have now?
  20. 20.1 + 3 + 3 =
  21. 21.There are 2 blue kites and 13 yellow kites. How many kites are there in all?
  22. 22.7 + 2 + 1 =
  23. 23.5 + 6 =
  24. 24.Diya has 15 books and gets 5 books more. How many books does Diya have now?
  25. 25.There are 5 pink kites and 5 blue kites. How many kites are there in all?
  26. 26.19 + 1 =
  27. 27.There are 12 red beads and 3 green beads. How many beads are there in all?
  28. 28.Saanvi has 15 mangoes and gets 4 mangoes more. How many mangoes does Saanvi have now?
  29. 29.12 + 3 =
  30. 30.7 + 7 =
  31. 31.14 + 2 =
  32. 32.6 + 8 + 1 =
  33. 33.15 + 3 =
  34. 34.10 + 9 =
  35. 35.7 + ? = 16
  36. 36.There are 2 green kites and 12 yellow kites. How many kites are there in all?
  37. 37.? + 1 = 8
  38. 38.Diya has 13 marbles and gets 6 marbles more. How many marbles does Diya have now?
  39. 39.1 + 2 + 7 =
  40. 40.? + 8 = 15

Answer key

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

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