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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 826 · 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.Sneha has 3 marbles and gets 4 marbles more. How many marbles does Sneha have now?
  2. 2.8 + 1 + 6 =
  3. 3.There are 3 pink balloons and 5 white balloons. How many balloons are there in all?
  4. 4.3 + 8 =
  5. 5.14 + 1 =
  6. 6.5 + 4 + 6 =
  7. 7.19 + 1 =
  8. 8.? + 1 = 11
  9. 9.5 + 1 + 11 =
  10. 10.8 + 7 + 2 =
  11. 11.5 + 4 =
  12. 12.1 + 1 =
  13. 13.12 + ? = 18
  14. 14.11 + ? = 16
  15. 15.Kabir has 6 bananas and gets 5 bananas more. How many bananas does Kabir have now?
  16. 16.There are 9 pink flowers and 11 red flowers. How many flowers are there in all?
  17. 17.Diya has 13 crayons and gets 1 crayon more. How many crayons does Diya have now?
  18. 18.3 + 1 + 14 =
  19. 19.Kabir has 15 bananas and gets 4 bananas more. How many bananas does Kabir have now?
  20. 20.8 + 3 + 5 =
  21. 21.2 + 2 + 9 =
  22. 22.There are 5 green balls and 5 yellow balls. How many balls are there in all?
  23. 23.There are 8 white balloons and 3 yellow balloons. How many balloons are there in all?
  24. 24.Rahul has 6 balls and gets 4 balls more. How many balls does Rahul have now?
  25. 25.10 + 3 =
  26. 26.7 + 4 + 7 =
  27. 27.There are 2 yellow kites and 11 blue kites. How many kites are there in all?
  28. 28.5 + 7 + 1 =
  29. 29.There are 5 pink kites and 7 white kites. How many kites are there in all?
  30. 30.Arjun has 5 laddoos and gets 5 laddoos more. How many laddoos does Arjun have now?
  31. 31.4 + 4 =
  32. 32.There are 2 blue beads and 2 white beads. How many beads are there in all?
  33. 33.1 + ? = 18
  34. 34.6 + 2 + 1 =
  35. 35.8 + 8 + 4 =
  36. 36.12 + ? = 13
  37. 37.Kabir has 2 books and gets 4 books more. How many books does Kabir have now?
  38. 38.Meera has 5 bananas and gets 3 bananas more. How many bananas does Meera have now?
  39. 39.1 + 2 + 17 =
  40. 40.13 + 2 =

Answer key

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

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