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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 579 · 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. 1.2 + ? = 8
  2. 2.7 + 11 =
  3. 3.4 + 5 + 4 =
  4. 4.Gurpreet has 14 bananas and gets 6 bananas more. How many bananas does Gurpreet have now?
  5. 5.There are 2 yellow flowers and 6 blue flowers. How many flowers are there in all?
  6. 6.? + 6 = 15
  7. 7.Karan has 2 flowers and gets 17 flowers more. How many flowers does Karan have now?
  8. 8.There are 8 yellow crayons and 6 green crayons. How many crayons are there in all?
  9. 9.4 + 1 + 1 =
  10. 10.Rahul has 4 balls and gets 13 balls more. How many balls does Rahul have now?
  11. 11.2 + 17 =
  12. 12.Kabir has 7 bananas and gets 13 bananas more. How many bananas does Kabir have now?
  13. 13.Manav has 5 balls and gets 12 balls more. How many balls does Manav have now?
  14. 14.? + 16 = 18
  15. 15.2 + ? = 12
  16. 16.2 + ? = 9
  17. 17.There are 6 white beads and 6 green beads. How many beads are there in all?
  18. 18.Meera has 12 books and gets 7 books more. How many books does Meera have now?
  19. 19.10 + 9 =
  20. 20.3 + 8 =
  21. 21.9 + ? = 13
  22. 22.Kabir has 13 balls and gets 6 balls more. How many balls does Kabir have now?
  23. 23.Diya has 13 balloons and gets 6 balloons more. How many balloons does Diya have now?
  24. 24.There are 8 red flowers and 11 white flowers. How many flowers are there in all?
  25. 25.18 + 1 =
  26. 26.12 + 3 =
  27. 27.Rahul has 12 kites and gets 8 kites more. How many kites does Rahul have now?
  28. 28.There are 6 blue crayons and 4 white crayons. How many crayons are there in all?
  29. 29.? + 2 = 3
  30. 30.1 + ? = 4
  31. 31.There are 4 green beads and 9 yellow beads. How many beads are there in all?
  32. 32.Arjun has 5 flowers and gets 13 flowers more. How many flowers does Arjun have now?
  33. 33.3 + ? = 18
  34. 34.There are 4 blue balloons and 13 white balloons. How many balloons are there in all?
  35. 35.15 + 3 =
  36. 36.Tara has 7 kites and gets 12 kites more. How many kites does Tara have now?
  37. 37.8 + 4 =
  38. 38.6 + 3 + 9 =
  39. 39.Saanvi has 3 kites and gets 10 kites more. How many kites does Saanvi have now?
  40. 40.Saanvi has 14 kites and gets 1 kite more. How many kites does Saanvi have now?

Answer key

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

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