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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 997 · 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. 1.9 + 9 =
  2. 2.7 + ? = 10
  3. 3.There are 11 red kites and 9 blue kites. How many kites are there in all?
  4. 4.There are 3 blue beads and 17 pink beads. How many beads are there in all?
  5. 5.Pooja has 4 balls and gets 11 balls more. How many balls does Pooja have now?
  6. 6.1 + 3 + 15 =
  7. 7.Rahul has 11 pencils and gets 9 pencils more. How many pencils does Rahul have now?
  8. 8.Tara has 3 bananas and gets 16 bananas more. How many bananas does Tara have now?
  9. 9.7 + 7 + 4 =
  10. 10.7 + ? = 9
  11. 11.There are 2 red kites and 9 yellow kites. How many kites are there in all?
  12. 12.5 + 7 =
  13. 13.Arjun has 2 marbles and gets 9 marbles more. How many marbles does Arjun have now?
  14. 14.4 + 1 =
  15. 15.4 + 1 + 3 =
  16. 16.13 + 7 =
  17. 17.There are 7 blue beads and 10 yellow beads. How many beads are there in all?
  18. 18.There are 2 yellow balls and 9 red balls. How many balls are there in all?
  19. 19.Pooja has 4 marbles and gets 7 marbles more. How many marbles does Pooja have now?
  20. 20.There are 6 red beads and 14 white beads. How many beads are there in all?
  21. 21.Kavya has 6 kites and gets 1 kite more. How many kites does Kavya have now?
  22. 22.2 + ? = 8
  23. 23.There are 3 pink balloons and 16 green balloons. How many balloons are there in all?
  24. 24.1 + 9 =
  25. 25.There are 12 yellow kites and 2 green kites. How many kites are there in all?
  26. 26.4 + 15 =
  27. 27.Nisha has 2 books and gets 5 books more. How many books does Nisha have now?
  28. 28.? + 2 = 12
  29. 29.5 + 5 + 3 =
  30. 30.There are 5 yellow balloons and 15 pink balloons. How many balloons are there in all?
  31. 31.1 + ? = 6
  32. 32.8 + ? = 11
  33. 33.11 + 7 =
  34. 34.2 + 8 =
  35. 35.2 + 5 + 2 =
  36. 36.Ishaan has 11 crayons and gets 2 crayons more. How many crayons does Ishaan have now?
  37. 37.There are 4 yellow kites and 3 blue kites. How many kites are there in all?
  38. 38.9 + ? = 20
  39. 39.4 + 4 + 2 =
  40. 40.9 + 7 =

Answer key

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

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