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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 871 · 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 + 1 + 13 =
  2. 2.5 + 4 + 10 =
  3. 3.6 + ? = 7
  4. 4.There are 3 yellow balloons and 3 pink balloons. How many balloons are there in all?
  5. 5.Kabir has 3 crayons and gets 16 crayons more. How many crayons does Kabir have now?
  6. 6.Rahul has 9 shells and gets 5 shells more. How many shells does Rahul have now?
  7. 7.4 + 13 =
  8. 8.Diya has 8 balloons and gets 4 balloons more. How many balloons does Diya have now?
  9. 9.? + 1 = 10
  10. 10.Vivaan has 11 laddoos and gets 3 laddoos more. How many laddoos does Vivaan have now?
  11. 11.5 + 6 + 7 =
  12. 12.4 + 6 + 8 =
  13. 13.7 + 6 + 2 =
  14. 14.Rahul has 2 kites and gets 5 kites more. How many kites does Rahul have now?
  15. 15.1 + 3 + 16 =
  16. 16.Joseph has 10 laddoos and gets 8 laddoos more. How many laddoos does Joseph have now?
  17. 17.12 + 1 =
  18. 18.9 + 9 =
  19. 19.7 + 1 + 10 =
  20. 20.6 + 8 + 3 =
  21. 21.Priya has 3 kites and gets 1 kite more. How many kites does Priya have now?
  22. 22.There are 12 yellow crayons and 7 red crayons. How many crayons are there in all?
  23. 23.Kabir has 4 balloons and gets 16 balloons more. How many balloons does Kabir have now?
  24. 24.1 + 16 =
  25. 25.14 + 6 =
  26. 26.Sneha has 3 flowers and gets 8 flowers more. How many flowers does Sneha have now?
  27. 27.5 + 2 + 1 =
  28. 28.Isha has 6 balloons and gets 4 balloons more. How many balloons does Isha have now?
  29. 29.Zoya has 4 bananas and gets 13 bananas more. How many bananas does Zoya have now?
  30. 30.3 + 1 =
  31. 31.Karan has 7 mangoes and gets 2 mangoes more. How many mangoes does Karan have now?
  32. 32.There are 4 blue flowers and 7 red flowers. How many flowers are there in all?
  33. 33.Diya has 12 balls and gets 4 balls more. How many balls does Diya have now?
  34. 34.Nisha has 11 laddoos and gets 1 laddoo more. How many laddoos does Nisha have now?
  35. 35.There are 3 yellow balloons and 13 blue balloons. How many balloons are there in all?
  36. 36.Rohan has 15 crayons and gets 1 crayon more. How many crayons does Rohan have now?
  37. 37.There are 8 white balls and 6 green balls. How many balls are there in all?
  38. 38.Priya has 10 laddoos and gets 1 laddoo more. How many laddoos does Priya have now?
  39. 39.5 + 2 + 2 =
  40. 40.4 + 6 =

Answer key

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

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