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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 886 · 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.? + 6 = 13
  2. 2.There are 2 blue flowers and 6 pink flowers. How many flowers are there in all?
  3. 3.14 + 1 =
  4. 4.Riya has 13 flowers and gets 6 flowers more. How many flowers does Riya have now?
  5. 5.There are 12 yellow flowers and 8 red flowers. How many flowers are there in all?
  6. 6.Gurpreet has 9 pencils and gets 6 pencils more. How many pencils does Gurpreet have now?
  7. 7.3 + 6 =
  8. 8.? + 11 = 12
  9. 9.2 + 8 + 2 =
  10. 10.There are 11 pink balls and 8 blue balls. How many balls are there in all?
  11. 11.Pooja has 15 shells and gets 5 shells more. How many shells does Pooja have now?
  12. 12.There are 6 blue balloons and 11 pink balloons. How many balloons are there in all?
  13. 13.Kabir has 7 pencils and gets 10 pencils more. How many pencils does Kabir have now?
  14. 14.1 + 8 + 5 =
  15. 15.3 + 5 =
  16. 16.5 + 4 + 4 =
  17. 17.Lakshmi has 3 laddoos and gets 7 laddoos more. How many laddoos does Lakshmi have now?
  18. 18.17 + 1 =
  19. 19.There are 8 blue beads and 5 red beads. How many beads are there in all?
  20. 20.7 + 5 =
  21. 21.14 + 2 =
  22. 22.? + 4 = 19
  23. 23.6 + 6 + 3 =
  24. 24.There are 12 yellow beads and 5 red beads. How many beads are there in all?
  25. 25.There are 12 blue flowers and 6 yellow flowers. How many flowers are there in all?
  26. 26.? + 1 = 3
  27. 27.There are 6 pink crayons and 13 green crayons. How many crayons are there in all?
  28. 28.? + 19 = 20
  29. 29.There are 10 green beads and 10 white beads. How many beads are there in all?
  30. 30.2 + 3 + 12 =
  31. 31.8 + 1 + 4 =
  32. 32.Gurpreet has 3 kites and gets 5 kites more. How many kites does Gurpreet have now?
  33. 33.4 + 4 + 12 =
  34. 34.There are 11 white beads and 9 green beads. How many beads are there in all?
  35. 35.There are 4 pink kites and 5 white kites. How many kites are there in all?
  36. 36.There are 9 red crayons and 9 blue crayons. How many crayons are there in all?
  37. 37.There are 12 blue balloons and 6 white balloons. How many balloons are there in all?
  38. 38.7 + ? = 10
  39. 39.3 + ? = 4
  40. 40.9 + 9 =

Answer key

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

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