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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 222 · 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.There are 5 blue beads and 15 red beads. How many beads are there in all?
  2. 2.3 + ? = 7
  3. 3.Kabir has 9 balls and gets 8 balls more. How many balls does Kabir have now?
  4. 4.? + 2 = 14
  5. 5.19 + 1 =
  6. 6.There are 9 blue kites and 4 yellow kites. How many kites are there in all?
  7. 7.1 + 5 =
  8. 8.7 + 8 + 4 =
  9. 9.? + 8 = 9
  10. 10.5 + 8 + 3 =
  11. 11.14 + 6 =
  12. 12.8 + 2 + 10 =
  13. 13.There are 6 green balls and 2 red balls. How many balls are there in all?
  14. 14.There are 8 yellow beads and 10 green beads. How many beads are there in all?
  15. 15.There are 5 blue flowers and 3 pink flowers. How many flowers are there in all?
  16. 16.4 + 7 + 6 =
  17. 17.There are 6 white beads and 12 red beads. How many beads are there in all?
  18. 18.There are 8 red flowers and 3 blue flowers. How many flowers are there in all?
  19. 19.6 + 1 + 7 =
  20. 20.Aarav has 10 flowers and gets 7 flowers more. How many flowers does Aarav have now?
  21. 21.3 + 2 + 1 =
  22. 22.There are 11 blue flowers and 8 white flowers. How many flowers are there in all?
  23. 23.5 + 4 + 3 =
  24. 24.There are 8 blue kites and 12 green kites. How many kites are there in all?
  25. 25.13 + 2 =
  26. 26.7 + ? = 11
  27. 27.8 + 2 + 9 =
  28. 28.3 + ? = 15
  29. 29.Diya has 7 shells and gets 4 shells more. How many shells does Diya have now?
  30. 30.Diya has 13 pencils and gets 1 pencil more. How many pencils does Diya have now?
  31. 31.? + 7 = 9
  32. 32.There are 12 red flowers and 4 yellow flowers. How many flowers are there in all?
  33. 33.Lakshmi has 2 balloons and gets 2 balloons more. How many balloons does Lakshmi have now?
  34. 34.10 + 2 =
  35. 35.There are 4 green flowers and 4 yellow flowers. How many flowers are there in all?
  36. 36.Riya has 4 shells and gets 5 shells more. How many shells does Riya have now?
  37. 37.10 + 7 =
  38. 38.Diya has 3 shells and gets 12 shells more. How many shells does Diya have now?
  39. 39.2 + 5 + 3 =
  40. 40.1 + 4 =

Answer key

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

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