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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 791 · 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. 1.8 + 5 + 7 =
  2. 2.There are 11 red balloons and 8 yellow balloons. How many balloons are there in all?
  3. 3.? + 12 = 14
  4. 4.There are 2 yellow balloons and 10 pink balloons. How many balloons are there in all?
  5. 5.Manav has 2 balls and gets 2 balls more. How many balls does Manav have now?
  6. 6.Saanvi has 3 kites and gets 5 kites more. How many kites does Saanvi have now?
  7. 7.1 + 5 + 11 =
  8. 8.5 + 6 =
  9. 9.There are 2 yellow beads and 14 blue beads. How many beads are there in all?
  10. 10.8 + 6 =
  11. 11.There are 4 blue beads and 10 green beads. How many beads are there in all?
  12. 12.10 + 10 =
  13. 13.17 + 3 =
  14. 14.Nisha has 2 flowers and gets 9 flowers more. How many flowers does Nisha have now?
  15. 15.18 + 1 =
  16. 16.3 + ? = 11
  17. 17.6 + 6 + 5 =
  18. 18.4 + 7 =
  19. 19.There are 8 pink beads and 6 blue beads. How many beads are there in all?
  20. 20.3 + 14 =
  21. 21.? + 6 = 19
  22. 22.13 + 5 =
  23. 23.2 + 16 =
  24. 24.There are 6 yellow beads and 14 green beads. How many beads are there in all?
  25. 25.There are 5 red flowers and 12 yellow flowers. How many flowers are there in all?
  26. 26.8 + 8 + 3 =
  27. 27.8 + 4 + 5 =
  28. 28.There are 10 red crayons and 6 yellow crayons. How many crayons are there in all?
  29. 29.Gurpreet has 9 shells and gets 11 shells more. How many shells does Gurpreet have now?
  30. 30.There are 8 pink crayons and 11 red crayons. How many crayons are there in all?
  31. 31.Lakshmi has 7 books and gets 13 books more. How many books does Lakshmi have now?
  32. 32.17 + 1 =
  33. 33.4 + 8 =
  34. 34.2 + 3 + 13 =
  35. 35.3 + ? = 18
  36. 36.2 + ? = 13
  37. 37.3 + 2 =
  38. 38.Meera has 2 kites and gets 5 kites more. How many kites does Meera have now?
  39. 39.2 + 8 + 9 =
  40. 40.Aarav has 5 books and gets 12 books more. How many books does Aarav have now?

Answer key

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

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