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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 398 · 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.Arjun has 14 bananas and gets 2 bananas more. How many bananas does Arjun have now?
  2. 2.14 + 3 =
  3. 3.? + 1 = 10
  4. 4.Tara has 14 books and gets 4 books more. How many books does Tara have now?
  5. 5.4 + ? = 14
  6. 6.3 + 10 =
  7. 7.5 + 7 + 3 =
  8. 8.4 + ? = 7
  9. 9.13 + 1 =
  10. 10.There are 10 yellow balloons and 3 white balloons. How many balloons are there in all?
  11. 11.Meera has 10 books and gets 1 book more. How many books does Meera have now?
  12. 12.There are 3 green flowers and 4 blue flowers. How many flowers are there in all?
  13. 13.There are 9 green flowers and 4 yellow flowers. How many flowers are there in all?
  14. 14.16 + 1 =
  15. 15.1 + 8 + 5 =
  16. 16.7 + 6 + 7 =
  17. 17.Sneha has 8 pencils and gets 11 pencils more. How many pencils does Sneha have now?
  18. 18.There are 6 white beads and 13 pink beads. How many beads are there in all?
  19. 19.14 + ? = 16
  20. 20.Manav has 5 pencils and gets 8 pencils more. How many pencils does Manav have now?
  21. 21.Ishaan has 13 kites and gets 4 kites more. How many kites does Ishaan have now?
  22. 22.10 + 1 =
  23. 23.Kavya has 13 balls and gets 6 balls more. How many balls does Kavya have now?
  24. 24.Lakshmi has 7 pencils and gets 13 pencils more. How many pencils does Lakshmi have now?
  25. 25.2 + ? = 4
  26. 26.Tara has 12 shells and gets 8 shells more. How many shells does Tara have now?
  27. 27.13 + 4 =
  28. 28.3 + 1 + 6 =
  29. 29.There are 9 red balloons and 11 yellow balloons. How many balloons are there in all?
  30. 30.18 + 2 =
  31. 31.? + 9 = 11
  32. 32.Saanvi has 2 bananas and gets 3 bananas more. How many bananas does Saanvi have now?
  33. 33.There are 5 yellow balloons and 4 pink balloons. How many balloons are there in all?
  34. 34.9 + 4 =
  35. 35.There are 4 yellow crayons and 12 pink crayons. How many crayons are there in all?
  36. 36.1 + 10 =
  37. 37.There are 5 blue crayons and 14 green crayons. How many crayons are there in all?
  38. 38.1 + 18 =
  39. 39.Arjun has 5 balls and gets 14 balls more. How many balls does Arjun have now?
  40. 40.Ananya has 3 bananas and gets 8 bananas more. How many bananas does Ananya have now?

Answer key

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

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