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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 991 · 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.Gurpreet has 11 kites and gets 2 kites more. How many kites does Gurpreet have now?
  2. 2.10 + ? = 12
  3. 3.3 + 6 =
  4. 4.6 + 3 =
  5. 5.? + 5 = 20
  6. 6.There are 8 green flowers and 12 pink flowers. How many flowers are there in all?
  7. 7.There are 11 red kites and 2 pink kites. How many kites are there in all?
  8. 8.1 + 11 =
  9. 9.3 + ? = 20
  10. 10.There are 2 pink beads and 6 white beads. How many beads are there in all?
  11. 11.5 + 8 + 1 =
  12. 12.2 + 3 + 10 =
  13. 13.There are 2 yellow beads and 9 white beads. How many beads are there in all?
  14. 14.3 + 2 =
  15. 15.There are 6 blue flowers and 3 pink flowers. How many flowers are there in all?
  16. 16.6 + 2 + 6 =
  17. 17.Meera has 8 mangoes and gets 8 mangoes more. How many mangoes does Meera have now?
  18. 18.11 + 5 =
  19. 19.3 + ? = 4
  20. 20.Pooja has 9 balloons and gets 7 balloons more. How many balloons does Pooja have now?
  21. 21.Tara has 8 pencils and gets 12 pencils more. How many pencils does Tara have now?
  22. 22.There are 6 yellow crayons and 6 blue crayons. How many crayons are there in all?
  23. 23.? + 2 = 3
  24. 24.There are 5 white balls and 12 yellow balls. How many balls are there in all?
  25. 25.Lakshmi has 13 mangoes and gets 7 mangoes more. How many mangoes does Lakshmi have now?
  26. 26.There are 2 green crayons and 7 red crayons. How many crayons are there in all?
  27. 27.There are 3 pink crayons and 7 green crayons. How many crayons are there in all?
  28. 28.1 + 4 + 1 =
  29. 29.There are 3 red crayons and 2 blue crayons. How many crayons are there in all?
  30. 30.6 + 5 =
  31. 31.12 + 1 =
  32. 32.There are 6 green balloons and 3 red balloons. How many balloons are there in all?
  33. 33.1 + ? = 15
  34. 34.19 + 1 =
  35. 35.1 + 12 =
  36. 36.Diya has 2 flowers and gets 18 flowers more. How many flowers does Diya have now?
  37. 37.Pooja has 12 mangoes and gets 5 mangoes more. How many mangoes does Pooja have now?
  38. 38.There are 2 pink crayons and 8 red crayons. How many crayons are there in all?
  39. 39.? + 4 = 14
  40. 40.11 + 4 =

Answer key

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

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