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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 956 · 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.There are 2 pink flowers and 6 blue flowers. How many flowers are there in all?
  2. 2.? + 1 = 9
  3. 3.1 + 2 =
  4. 4.9 + 3 =
  5. 5.Arjun has 5 mangoes and gets 4 mangoes more. How many mangoes does Arjun have now?
  6. 6.1 + 8 + 10 =
  7. 7.There are 2 blue crayons and 18 red crayons. How many crayons are there in all?
  8. 8.19 + 1 =
  9. 9.There are 8 red balloons and 4 white balloons. How many balloons are there in all?
  10. 10.Saanvi has 9 pencils and gets 10 pencils more. How many pencils does Saanvi have now?
  11. 11.3 + 3 + 8 =
  12. 12.Sneha has 4 balls and gets 2 balls more. How many balls does Sneha have now?
  13. 13.? + 3 = 7
  14. 14.There are 5 yellow kites and 5 red kites. How many kites are there in all?
  15. 15.Vivaan has 13 books and gets 5 books more. How many books does Vivaan have now?
  16. 16.? + 3 = 10
  17. 17.12 + 1 =
  18. 18.4 + 4 =
  19. 19.5 + 8 + 2 =
  20. 20.? + 3 = 11
  21. 21.There are 10 pink beads and 2 yellow beads. How many beads are there in all?
  22. 22.Vivaan has 9 crayons and gets 1 crayon more. How many crayons does Vivaan have now?
  23. 23.2 + ? = 13
  24. 24.Nisha has 8 balls and gets 7 balls more. How many balls does Nisha have now?
  25. 25.7 + 4 + 1 =
  26. 26.17 + 1 =
  27. 27.? + 3 = 14
  28. 28.Rahul has 8 marbles and gets 2 marbles more. How many marbles does Rahul have now?
  29. 29.18 + 2 =
  30. 30.Aarav has 5 kites and gets 13 kites more. How many kites does Aarav have now?
  31. 31.1 + 6 + 5 =
  32. 32.14 + 6 =
  33. 33.7 + 3 + 4 =
  34. 34.5 + 15 =
  35. 35.There are 3 blue crayons and 15 red crayons. How many crayons are there in all?
  36. 36.? + 2 = 5
  37. 37.5 + ? = 6
  38. 38.Vivaan has 5 balls and gets 10 balls more. How many balls does Vivaan have now?
  39. 39.8 + 8 =
  40. 40.1 + 8 + 2 =

Answer key

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

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