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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 62 · 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.Zoya has 3 flowers and gets 5 flowers more. How many flowers does Zoya have now?
  2. 2.There are 9 green kites and 8 red kites. How many kites are there in all?
  3. 3.9 + 4 =
  4. 4.6 + 2 + 10 =
  5. 5.17 + 3 =
  6. 6.? + 1 = 13
  7. 7.5 + ? = 9
  8. 8.? + 8 = 9
  9. 9.3 + 1 + 14 =
  10. 10.Meera has 5 kites and gets 1 kite more. How many kites does Meera have now?
  11. 11.There are 3 blue balls and 5 green balls. How many balls are there in all?
  12. 12.4 + 1 + 15 =
  13. 13.Sneha has 12 books and gets 2 books more. How many books does Sneha have now?
  14. 14.3 + 2 =
  15. 15.3 + 7 + 10 =
  16. 16.Rohan has 14 pencils and gets 3 pencils more. How many pencils does Rohan have now?
  17. 17.4 + 3 + 4 =
  18. 18.? + 2 = 4
  19. 19.9 + ? = 15
  20. 20.Dev has 9 crayons and gets 8 crayons more. How many crayons does Dev have now?
  21. 21.There are 12 green balls and 6 blue balls. How many balls are there in all?
  22. 22.10 + 3 =
  23. 23.2 + ? = 6
  24. 24.Karan has 5 bananas and gets 6 bananas more. How many bananas does Karan have now?
  25. 25.1 + 5 + 4 =
  26. 26.8 + 7 =
  27. 27.3 + ? = 15
  28. 28.3 + ? = 4
  29. 29.Lakshmi has 11 crayons and gets 5 crayons more. How many crayons does Lakshmi have now?
  30. 30.18 + 1 =
  31. 31.There are 2 white beads and 14 red beads. How many beads are there in all?
  32. 32.6 + 4 + 10 =
  33. 33.Nisha has 11 balls and gets 5 balls more. How many balls does Nisha have now?
  34. 34.Kabir has 10 flowers and gets 6 flowers more. How many flowers does Kabir have now?
  35. 35.? + 8 = 16
  36. 36.7 + 5 + 2 =
  37. 37.Kavya has 13 shells and gets 7 shells more. How many shells does Kavya have now?
  38. 38.Arjun has 12 shells and gets 8 shells more. How many shells does Arjun have now?
  39. 39.? + 1 = 6
  40. 40.2 + ? = 9

Answer key

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

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