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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 581 · 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. 1.3 + ? = 8
  2. 2.2 + 5 =
  3. 3.There are 5 pink beads and 3 green beads. How many beads are there in all?
  4. 4.There are 3 red crayons and 6 yellow crayons. How many crayons are there in all?
  5. 5.Diya has 3 laddoos and gets 11 laddoos more. How many laddoos does Diya have now?
  6. 6.There are 3 blue balloons and 14 green balloons. How many balloons are there in all?
  7. 7.Nisha has 10 balls and gets 10 balls more. How many balls does Nisha have now?
  8. 8.1 + 11 =
  9. 9.? + 2 = 16
  10. 10.Saanvi has 13 shells and gets 7 shells more. How many shells does Saanvi have now?
  11. 11.3 + ? = 7
  12. 12.9 + 10 =
  13. 13.There are 8 red kites and 12 pink kites. How many kites are there in all?
  14. 14.6 + 3 + 3 =
  15. 15.3 + 15 =
  16. 16.10 + 5 =
  17. 17.11 + 8 =
  18. 18.4 + 11 =
  19. 19.There are 3 green beads and 12 white beads. How many beads are there in all?
  20. 20.10 + 8 =
  21. 21.Priya has 2 pencils and gets 5 pencils more. How many pencils does Priya have now?
  22. 22.4 + 14 =
  23. 23.1 + 17 =
  24. 24.11 + ? = 12
  25. 25.5 + ? = 10
  26. 26.4 + 6 + 1 =
  27. 27.1 + 19 =
  28. 28.11 + 1 =
  29. 29.Gurpreet has 8 kites and gets 4 kites more. How many kites does Gurpreet have now?
  30. 30.1 + 1 + 5 =
  31. 31.There are 9 green beads and 2 blue beads. How many beads are there in all?
  32. 32.12 + 5 =
  33. 33.Kavya has 10 mangoes and gets 3 mangoes more. How many mangoes does Kavya have now?
  34. 34.1 + 13 =
  35. 35.6 + 5 + 2 =
  36. 36.Vivaan has 11 laddoos and gets 8 laddoos more. How many laddoos does Vivaan have now?
  37. 37.Joseph has 12 mangoes and gets 4 mangoes more. How many mangoes does Joseph have now?
  38. 38.5 + 1 + 4 =
  39. 39.4 + ? = 7
  40. 40.? + 3 = 4

Answer key

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

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