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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 382 · 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.There are 8 pink kites and 4 yellow kites. How many kites are there in all?
  2. 2.There are 8 yellow flowers and 8 blue flowers. How many flowers are there in all?
  3. 3.Sneha has 15 pencils and gets 1 pencil more. How many pencils does Sneha have now?
  4. 4.5 + 8 + 5 =
  5. 5.? + 5 = 8
  6. 6.16 + 1 =
  7. 7.2 + 4 + 3 =
  8. 8.5 + 6 + 2 =
  9. 9.Gurpreet has 15 laddoos and gets 2 laddoos more. How many laddoos does Gurpreet have now?
  10. 10.6 + 2 + 8 =
  11. 11.There are 10 red kites and 8 pink kites. How many kites are there in all?
  12. 12.2 + ? = 7
  13. 13.There are 11 blue beads and 2 red beads. How many beads are there in all?
  14. 14.There are 9 red beads and 2 pink beads. How many beads are there in all?
  15. 15.1 + ? = 3
  16. 16.8 + ? = 9
  17. 17.Lakshmi has 15 crayons and gets 2 crayons more. How many crayons does Lakshmi have now?
  18. 18.Kavya has 3 pencils and gets 15 pencils more. How many pencils does Kavya have now?
  19. 19.18 + 2 =
  20. 20.? + 6 = 10
  21. 21.Vivaan has 15 balloons and gets 2 balloons more. How many balloons does Vivaan have now?
  22. 22.Aditya has 5 balls and gets 4 balls more. How many balls does Aditya have now?
  23. 23.7 + 5 + 6 =
  24. 24.12 + 6 =
  25. 25.There are 7 yellow balloons and 2 green balloons. How many balloons are there in all?
  26. 26.13 + ? = 17
  27. 27.13 + 1 =
  28. 28.17 + 1 =
  29. 29.14 + 6 =
  30. 30.Isha has 4 pencils and gets 1 pencil more. How many pencils does Isha have now?
  31. 31.There are 8 yellow crayons and 9 red crayons. How many crayons are there in all?
  32. 32.9 + 9 =
  33. 33.Zoya has 9 marbles and gets 5 marbles more. How many marbles does Zoya have now?
  34. 34.Zoya has 4 balloons and gets 15 balloons more. How many balloons does Zoya have now?
  35. 35.3 + 5 + 8 =
  36. 36.5 + ? = 17
  37. 37.Lakshmi has 6 flowers and gets 4 flowers more. How many flowers does Lakshmi have now?
  38. 38.19 + 1 =
  39. 39.1 + ? = 14
  40. 40.9 + 10 =

Answer key

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

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