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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 861 · 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. 1.6 + 7 + 7 =
  2. 2.There are 6 white flowers and 3 blue flowers. How many flowers are there in all?
  3. 3.Sneha has 8 shells and gets 10 shells more. How many shells does Sneha have now?
  4. 4.? + 5 = 7
  5. 5.2 + 11 =
  6. 6.There are 11 red crayons and 3 pink crayons. How many crayons are there in all?
  7. 7.13 + 1 =
  8. 8.Kabir has 2 flowers and gets 8 flowers more. How many flowers does Kabir have now?
  9. 9.8 + 3 + 4 =
  10. 10.? + 3 = 19
  11. 11.13 + 7 =
  12. 12.Meera has 6 flowers and gets 14 flowers more. How many flowers does Meera have now?
  13. 13.There are 12 red crayons and 4 pink crayons. How many crayons are there in all?
  14. 14.12 + 1 =
  15. 15.Kabir has 5 laddoos and gets 3 laddoos more. How many laddoos does Kabir have now?
  16. 16.19 + 1 =
  17. 17.There are 5 blue kites and 13 yellow kites. How many kites are there in all?
  18. 18.1 + 4 + 14 =
  19. 19.Dev has 5 mangoes and gets 9 mangoes more. How many mangoes does Dev have now?
  20. 20.? + 1 = 9
  21. 21.Rohan has 2 mangoes and gets 6 mangoes more. How many mangoes does Rohan have now?
  22. 22.Isha has 8 balls and gets 2 balls more. How many balls does Isha have now?
  23. 23.1 + 1 + 3 =
  24. 24.Vivaan has 4 pencils and gets 4 pencils more. How many pencils does Vivaan have now?
  25. 25.6 + ? = 11
  26. 26.Joseph has 6 marbles and gets 4 marbles more. How many marbles does Joseph have now?
  27. 27.14 + 5 =
  28. 28.There are 6 blue kites and 6 yellow kites. How many kites are there in all?
  29. 29.5 + 2 =
  30. 30.3 + 2 + 11 =
  31. 31.3 + 1 =
  32. 32.? + 1 = 19
  33. 33.? + 6 = 7
  34. 34.16 + 4 =
  35. 35.1 + 4 + 8 =
  36. 36.? + 2 = 6
  37. 37.14 + ? = 19
  38. 38.There are 8 yellow flowers and 7 red flowers. How many flowers are there in all?
  39. 39.Riya has 5 shells and gets 8 shells more. How many shells does Riya have now?
  40. 40.6 + ? = 14

Answer key

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

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