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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 471 · 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. 1.4 + 13 =
  2. 2.There are 3 white kites and 6 blue kites. How many kites are there in all?
  3. 3.There are 12 red crayons and 8 blue crayons. How many crayons are there in all?
  4. 4.2 + ? = 9
  5. 5.Nisha has 3 laddoos and gets 7 laddoos more. How many laddoos does Nisha have now?
  6. 6.12 + 6 =
  7. 7.? + 1 = 11
  8. 8.4 + 2 + 4 =
  9. 9.Pooja has 11 mangoes and gets 8 mangoes more. How many mangoes does Pooja have now?
  10. 10.Vivaan has 10 marbles and gets 2 marbles more. How many marbles does Vivaan have now?
  11. 11.1 + 19 =
  12. 12.Meera has 3 books and gets 9 books more. How many books does Meera have now?
  13. 13.Nisha has 3 marbles and gets 5 marbles more. How many marbles does Nisha have now?
  14. 14.Kavya has 3 balls and gets 7 balls more. How many balls does Kavya have now?
  15. 15.13 + 6 =
  16. 16.1 + 12 =
  17. 17.There are 10 white balloons and 3 yellow balloons. How many balloons are there in all?
  18. 18.Joseph has 10 flowers and gets 3 flowers more. How many flowers does Joseph have now?
  19. 19.4 + 10 =
  20. 20.? + 11 = 15
  21. 21.? + 12 = 14
  22. 22.There are 8 green balloons and 8 blue balloons. How many balloons are there in all?
  23. 23.4 + ? = 12
  24. 24.2 + 10 =
  25. 25.2 + ? = 4
  26. 26.Riya has 3 laddoos and gets 3 laddoos more. How many laddoos does Riya have now?
  27. 27.Joseph has 14 mangoes and gets 6 mangoes more. How many mangoes does Joseph have now?
  28. 28.8 + 6 + 5 =
  29. 29.11 + ? = 19
  30. 30.? + 6 = 7
  31. 31.Dev has 14 pencils and gets 1 pencil more. How many pencils does Dev have now?
  32. 32.1 + 1 + 6 =
  33. 33.7 + 4 + 4 =
  34. 34.11 + 4 =
  35. 35.1 + 3 + 10 =
  36. 36.2 + 7 + 3 =
  37. 37.4 + 8 + 5 =
  38. 38.12 + ? = 14
  39. 39.4 + 12 =
  40. 40.There are 4 blue kites and 5 green kites. How many kites are there in all?

Answer key

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

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