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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 965 · 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. 1.2 + 5 =
  2. 2.There are 7 blue balloons and 5 red balloons. How many balloons are there in all?
  3. 3.Zoya has 4 pencils and gets 4 pencils more. How many pencils does Zoya have now?
  4. 4.12 + 3 =
  5. 5.1 + 6 + 11 =
  6. 6.4 + ? = 14
  7. 7.2 + 4 + 13 =
  8. 8.1 + 5 + 7 =
  9. 9.There are 2 blue balloons and 8 green balloons. How many balloons are there in all?
  10. 10.There are 6 blue balloons and 8 green balloons. How many balloons are there in all?
  11. 11.6 + 8 + 4 =
  12. 12.There are 9 yellow flowers and 11 blue flowers. How many flowers are there in all?
  13. 13.9 + ? = 13
  14. 14.8 + 7 + 2 =
  15. 15.5 + 2 =
  16. 16.There are 3 pink beads and 12 blue beads. How many beads are there in all?
  17. 17.Lakshmi has 14 laddoos and gets 4 laddoos more. How many laddoos does Lakshmi have now?
  18. 18.? + 8 = 19
  19. 19.Kabir has 12 balls and gets 6 balls more. How many balls does Kabir have now?
  20. 20.5 + 5 + 9 =
  21. 21.4 + 2 + 10 =
  22. 22.Lakshmi has 14 laddoos and gets 5 laddoos more. How many laddoos does Lakshmi have now?
  23. 23.Isha has 14 balls and gets 3 balls more. How many balls does Isha have now?
  24. 24.Joseph has 4 mangoes and gets 10 mangoes more. How many mangoes does Joseph have now?
  25. 25.10 + 10 =
  26. 26.10 + 7 =
  27. 27.Vivaan has 8 marbles and gets 6 marbles more. How many marbles does Vivaan have now?
  28. 28.? + 3 = 17
  29. 29.There are 3 blue crayons and 11 white crayons. How many crayons are there in all?
  30. 30.6 + 4 + 8 =
  31. 31.11 + ? = 17
  32. 32.There are 7 yellow kites and 9 pink kites. How many kites are there in all?
  33. 33.1 + 4 + 7 =
  34. 34.There are 4 red beads and 11 white beads. How many beads are there in all?
  35. 35.1 + ? = 5
  36. 36.Kabir has 2 bananas and gets 15 bananas more. How many bananas does Kabir have now?
  37. 37.? + 1 = 7
  38. 38.1 + 2 + 15 =
  39. 39.6 + ? = 11
  40. 40.9 + 5 =

Answer key

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

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