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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 8 · 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. 1.12 + 5 =
  2. 2.11 + 8 =
  3. 3.? + 2 = 20
  4. 4.2 + ? = 6
  5. 5.There are 6 red crayons and 13 yellow crayons. How many crayons are there in all?
  6. 6.15 + 5 =
  7. 7.Sneha has 3 pencils and gets 15 pencils more. How many pencils does Sneha have now?
  8. 8.1 + ? = 5
  9. 9.7 + 3 + 1 =
  10. 10.Farhan has 11 bananas and gets 1 banana more. How many bananas does Farhan have now?
  11. 11.Aditya has 5 kites and gets 10 kites more. How many kites does Aditya have now?
  12. 12.5 + 6 + 9 =
  13. 13.17 + 1 =
  14. 14.5 + ? = 10
  15. 15.There are 5 yellow balloons and 6 red balloons. How many balloons are there in all?
  16. 16.5 + 6 + 5 =
  17. 17.5 + ? = 19
  18. 18.5 + 8 + 1 =
  19. 19.2 + 18 =
  20. 20.16 + 3 =
  21. 21.2 + 1 =
  22. 22.There are 12 blue kites and 2 green kites. How many kites are there in all?
  23. 23.1 + ? = 14
  24. 24.6 + ? = 9
  25. 25.Lakshmi has 12 shells and gets 7 shells more. How many shells does Lakshmi have now?
  26. 26.5 + 4 + 6 =
  27. 27.18 + 2 =
  28. 28.Kavya has 13 crayons and gets 7 crayons more. How many crayons does Kavya have now?
  29. 29.8 + 2 + 2 =
  30. 30.There are 11 red balloons and 8 white balloons. How many balloons are there in all?
  31. 31.There are 9 white balls and 8 green balls. How many balls are there in all?
  32. 32.Kabir has 15 shells and gets 3 shells more. How many shells does Kabir have now?
  33. 33.7 + ? = 8
  34. 34.7 + 8 + 3 =
  35. 35.9 + 7 =
  36. 36.There are 6 white beads and 12 green beads. How many beads are there in all?
  37. 37.Karan has 15 flowers and gets 1 flower more. How many flowers does Karan have now?
  38. 38.Vivaan has 12 kites and gets 5 kites more. How many kites does Vivaan have now?
  39. 39.6 + 2 + 2 =
  40. 40.Meera has 4 flowers and gets 6 flowers more. How many flowers does Meera have now?

Answer key

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

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