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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 106 · 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 + 1 =
  2. 2.Priya has 4 kites and gets 16 kites more. How many kites does Priya have now?
  3. 3.? + 1 = 8
  4. 4.6 + 7 + 4 =
  5. 5.There are 10 yellow beads and 9 white beads. How many beads are there in all?
  6. 6.9 + ? = 10
  7. 7.There are 11 red flowers and 7 blue flowers. How many flowers are there in all?
  8. 8.? + 2 = 9
  9. 9.Lakshmi has 12 crayons and gets 8 crayons more. How many crayons does Lakshmi have now?
  10. 10.6 + ? = 8
  11. 11.5 + ? = 16
  12. 12.? + 4 = 5
  13. 13.4 + 8 =
  14. 14.1 + 3 =
  15. 15.7 + 4 + 7 =
  16. 16.Kabir has 9 mangoes and gets 7 mangoes more. How many mangoes does Kabir have now?
  17. 17.4 + 3 =
  18. 18.There are 2 white balls and 8 pink balls. How many balls are there in all?
  19. 19.7 + 6 + 6 =
  20. 20.There are 6 blue balloons and 8 white balloons. How many balloons are there in all?
  21. 21.Arjun has 11 books and gets 5 books more. How many books does Arjun have now?
  22. 22.? + 5 = 20
  23. 23.5 + 5 + 4 =
  24. 24.Kabir has 11 flowers and gets 8 flowers more. How many flowers does Kabir have now?
  25. 25.6 + 1 + 12 =
  26. 26.1 + 10 =
  27. 27.Meera has 9 kites and gets 3 kites more. How many kites does Meera have now?
  28. 28.2 + ? = 6
  29. 29.There are 4 red flowers and 12 blue flowers. How many flowers are there in all?
  30. 30.7 + 8 =
  31. 31.? + 3 = 16
  32. 32.There are 6 green balls and 7 red balls. How many balls are there in all?
  33. 33.Diya has 6 balloons and gets 4 balloons more. How many balloons does Diya have now?
  34. 34.? + 9 = 10
  35. 35.Aarav has 14 pencils and gets 3 pencils more. How many pencils does Aarav have now?
  36. 36.7 + 8 + 1 =
  37. 37.5 + 7 =
  38. 38.There are 3 blue crayons and 4 green crayons. How many crayons are there in all?
  39. 39.? + 7 = 11
  40. 40.2 + ? = 3

Answer key

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

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