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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 787 · 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.Dev has 2 flowers and gets 3 flowers more. How many flowers does Dev have now?
  2. 2.Ananya has 13 laddoos and gets 7 laddoos more. How many laddoos does Ananya have now?
  3. 3.2 + ? = 6
  4. 4.19 + 1 =
  5. 5.There are 8 white flowers and 7 red flowers. How many flowers are there in all?
  6. 6.Kavya has 3 mangoes and gets 4 mangoes more. How many mangoes does Kavya have now?
  7. 7.2 + 17 =
  8. 8.Gurpreet has 4 books and gets 3 books more. How many books does Gurpreet have now?
  9. 9.11 + 8 =
  10. 10.15 + 5 =
  11. 11.There are 5 pink balloons and 9 red balloons. How many balloons are there in all?
  12. 12.Joseph has 14 laddoos and gets 4 laddoos more. How many laddoos does Joseph have now?
  13. 13.Diya has 10 balloons and gets 1 balloon more. How many balloons does Diya have now?
  14. 14.Aarav has 9 marbles and gets 8 marbles more. How many marbles does Aarav have now?
  15. 15.4 + 14 =
  16. 16.6 + 3 + 2 =
  17. 17.Sneha has 2 flowers and gets 17 flowers more. How many flowers does Sneha have now?
  18. 18.There are 3 white crayons and 15 pink crayons. How many crayons are there in all?
  19. 19.9 + ? = 19
  20. 20.? + 3 = 7
  21. 21.4 + 4 + 1 =
  22. 22.Ishaan has 9 crayons and gets 1 crayon more. How many crayons does Ishaan have now?
  23. 23.11 + 1 =
  24. 24.7 + 2 + 7 =
  25. 25.16 + 2 =
  26. 26.There are 3 pink kites and 11 red kites. How many kites are there in all?
  27. 27.8 + 4 =
  28. 28.16 + 1 =
  29. 29.4 + 13 =
  30. 30.Diya has 3 crayons and gets 7 crayons more. How many crayons does Diya have now?
  31. 31.There are 8 blue balloons and 8 yellow balloons. How many balloons are there in all?
  32. 32.2 + 3 + 1 =
  33. 33.1 + 2 + 9 =
  34. 34.Aditya has 8 mangoes and gets 7 mangoes more. How many mangoes does Aditya have now?
  35. 35.Riya has 15 flowers and gets 3 flowers more. How many flowers does Riya have now?
  36. 36.There are 5 yellow crayons and 9 red crayons. How many crayons are there in all?
  37. 37.3 + 6 + 5 =
  38. 38.6 + ? = 7
  39. 39.3 + 10 =
  40. 40.? + 5 = 9

Answer key

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

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