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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 482 · 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. 1.14 + 3 =
  2. 2.Vivaan has 12 shells and gets 2 shells more. How many shells does Vivaan have now?
  3. 3.11 + 5 =
  4. 4.There are 3 white beads and 7 green beads. How many beads are there in all?
  5. 5.2 + ? = 6
  6. 6.7 + 13 =
  7. 7.Rahul has 10 crayons and gets 10 crayons more. How many crayons does Rahul have now?
  8. 8.? + 7 = 10
  9. 9.6 + ? = 7
  10. 10.Kabir has 10 bananas and gets 3 bananas more. How many bananas does Kabir have now?
  11. 11.There are 2 yellow balls and 18 red balls. How many balls are there in all?
  12. 12.Aditya has 3 flowers and gets 17 flowers more. How many flowers does Aditya have now?
  13. 13.? + 2 = 14
  14. 14.Karan has 10 pencils and gets 4 pencils more. How many pencils does Karan have now?
  15. 15.8 + 6 + 5 =
  16. 16.? + 9 = 11
  17. 17.There are 8 yellow flowers and 2 pink flowers. How many flowers are there in all?
  18. 18.8 + 7 + 2 =
  19. 19.? + 10 = 12
  20. 20.Pooja has 11 mangoes and gets 3 mangoes more. How many mangoes does Pooja have now?
  21. 21.There are 2 white kites and 5 yellow kites. How many kites are there in all?
  22. 22.12 + ? = 20
  23. 23.? + 2 = 10
  24. 24.6 + 3 + 11 =
  25. 25.1 + ? = 14
  26. 26.14 + 1 =
  27. 27.12 + 2 =
  28. 28.2 + 2 + 12 =
  29. 29.Meera has 8 books and gets 8 books more. How many books does Meera have now?
  30. 30.5 + ? = 9
  31. 31.1 + 19 =
  32. 32.5 + 4 + 1 =
  33. 33.5 + 13 =
  34. 34.Priya has 10 mangoes and gets 6 mangoes more. How many mangoes does Priya have now?
  35. 35.There are 3 yellow flowers and 5 white flowers. How many flowers are there in all?
  36. 36.4 + 1 + 12 =
  37. 37.5 + 8 + 7 =
  38. 38.Arjun has 8 balloons and gets 8 balloons more. How many balloons does Arjun have now?
  39. 39.There are 10 blue flowers and 8 red flowers. How many flowers are there in all?
  40. 40.8 + 7 + 3 =

Answer key

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

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