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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 565 · 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.Meera has 9 balls and gets 9 balls more. How many balls does Meera have now?
  2. 2.Aditya has 10 balls and gets 1 ball more. How many balls does Aditya have now?
  3. 3.There are 2 white beads and 4 green beads. How many beads are there in all?
  4. 4.4 + 3 =
  5. 5.5 + 10 =
  6. 6.There are 5 red balloons and 3 pink balloons. How many balloons are there in all?
  7. 7.There are 5 yellow beads and 12 red beads. How many beads are there in all?
  8. 8.Tara has 7 laddoos and gets 11 laddoos more. How many laddoos does Tara have now?
  9. 9.There are 3 green balloons and 8 red balloons. How many balloons are there in all?
  10. 10.2 + 5 + 9 =
  11. 11.? + 1 = 8
  12. 12.1 + 7 + 10 =
  13. 13.Priya has 7 balloons and gets 4 balloons more. How many balloons does Priya have now?
  14. 14.Saanvi has 14 mangoes and gets 1 mango more. How many mangoes does Saanvi have now?
  15. 15.10 + 8 =
  16. 16.Vivaan has 13 shells and gets 1 shell more. How many shells does Vivaan have now?
  17. 17.2 + ? = 5
  18. 18.Aarav has 6 shells and gets 14 shells more. How many shells does Aarav have now?
  19. 19.19 + 1 =
  20. 20.7 + 1 =
  21. 21.Sneha has 15 crayons and gets 1 crayon more. How many crayons does Sneha have now?
  22. 22.Ishaan has 13 bananas and gets 7 bananas more. How many bananas does Ishaan have now?
  23. 23.2 + 7 + 7 =
  24. 24.1 + ? = 3
  25. 25.2 + 13 =
  26. 26.8 + ? = 14
  27. 27.14 + 3 =
  28. 28.11 + 5 =
  29. 29.15 + 3 =
  30. 30.Aarav has 15 flowers and gets 2 flowers more. How many flowers does Aarav have now?
  31. 31.Zoya has 6 kites and gets 9 kites more. How many kites does Zoya have now?
  32. 32.2 + 1 =
  33. 33.3 + ? = 10
  34. 34.Manav has 2 balloons and gets 1 balloon more. How many balloons does Manav have now?
  35. 35.8 + 7 + 5 =
  36. 36.Karan has 10 balls and gets 5 balls more. How many balls does Karan have now?
  37. 37.15 + 4 =
  38. 38.6 + 1 + 9 =
  39. 39.Priya has 10 pencils and gets 8 pencils more. How many pencils does Priya have now?
  40. 40.Ishaan has 5 marbles and gets 13 marbles more. How many marbles does Ishaan have now?

Answer key

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

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