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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 988 · 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. 1.4 + 4 =
  2. 2.? + 14 = 15
  3. 3.2 + 2 + 9 =
  4. 4.1 + ? = 13
  5. 5.14 + 2 =
  6. 6.Meera has 10 balloons and gets 10 balloons more. How many balloons does Meera have now?
  7. 7.2 + 16 =
  8. 8.4 + ? = 6
  9. 9.There are 6 blue flowers and 7 pink flowers. How many flowers are there in all?
  10. 10.9 + 6 =
  11. 11.7 + 5 + 7 =
  12. 12.18 + 1 =
  13. 13.There are 11 red balloons and 8 white balloons. How many balloons are there in all?
  14. 14.? + 14 = 17
  15. 15.Zoya has 12 balloons and gets 2 balloons more. How many balloons does Zoya have now?
  16. 16.Joseph has 8 shells and gets 12 shells more. How many shells does Joseph have now?
  17. 17.1 + 6 + 3 =
  18. 18.There are 10 red kites and 5 yellow kites. How many kites are there in all?
  19. 19.Dev has 8 flowers and gets 2 flowers more. How many flowers does Dev have now?
  20. 20.Aditya has 13 bananas and gets 7 bananas more. How many bananas does Aditya have now?
  21. 21.There are 2 blue kites and 16 pink kites. How many kites are there in all?
  22. 22.3 + 3 + 5 =
  23. 23.There are 6 red flowers and 2 green flowers. How many flowers are there in all?
  24. 24.1 + 14 =
  25. 25.There are 8 white crayons and 8 red crayons. How many crayons are there in all?
  26. 26.Pooja has 5 kites and gets 9 kites more. How many kites does Pooja have now?
  27. 27.Priya has 2 pencils and gets 16 pencils more. How many pencils does Priya have now?
  28. 28.4 + 2 + 2 =
  29. 29.There are 4 green beads and 13 yellow beads. How many beads are there in all?
  30. 30.There are 4 white crayons and 12 blue crayons. How many crayons are there in all?
  31. 31.6 + 3 + 2 =
  32. 32.1 + 6 =
  33. 33.3 + 4 + 5 =
  34. 34.2 + ? = 16
  35. 35.8 + 3 + 9 =
  36. 36.There are 2 pink beads and 13 blue beads. How many beads are there in all?
  37. 37.3 + 7 + 1 =
  38. 38.? + 3 = 6
  39. 39.5 + ? = 13
  40. 40.There are 2 green flowers and 5 red flowers. How many flowers are there in all?

Answer key

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

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