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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 183 · 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.Tara has 14 books and gets 4 books more. How many books does Tara have now?
  2. 2.5 + ? = 6
  3. 3.There are 7 yellow flowers and 2 red flowers. How many flowers are there in all?
  4. 4.There are 8 red crayons and 6 green crayons. How many crayons are there in all?
  5. 5.12 + 8 =
  6. 6.2 + 1 + 10 =
  7. 7.6 + 3 =
  8. 8.4 + 8 + 8 =
  9. 9.8 + 4 + 7 =
  10. 10.Vivaan has 12 bananas and gets 4 bananas more. How many bananas does Vivaan have now?
  11. 11.7 + 2 =
  12. 12.11 + 1 =
  13. 13.3 + 14 =
  14. 14.17 + 1 =
  15. 15.8 + 1 + 7 =
  16. 16.Joseph has 2 shells and gets 17 shells more. How many shells does Joseph have now?
  17. 17.Diya has 8 shells and gets 4 shells more. How many shells does Diya have now?
  18. 18.7 + 4 + 4 =
  19. 19.Dev has 15 bananas and gets 1 banana more. How many bananas does Dev have now?
  20. 20.8 + 3 + 2 =
  21. 21.There are 2 blue balls and 6 red balls. How many balls are there in all?
  22. 22.17 + 2 =
  23. 23.Rahul has 4 kites and gets 11 kites more. How many kites does Rahul have now?
  24. 24.Ananya has 13 pencils and gets 2 pencils more. How many pencils does Ananya have now?
  25. 25.1 + 3 + 13 =
  26. 26.? + 2 = 3
  27. 27.2 + 1 + 3 =
  28. 28.Joseph has 11 kites and gets 1 kite more. How many kites does Joseph have now?
  29. 29.7 + 1 + 1 =
  30. 30.5 + ? = 8
  31. 31.? + 11 = 17
  32. 32.6 + 4 + 5 =
  33. 33.8 + 1 + 3 =
  34. 34.19 + 1 =
  35. 35.8 + 7 + 5 =
  36. 36.6 + 2 + 1 =
  37. 37.Ananya has 14 laddoos and gets 2 laddoos more. How many laddoos does Ananya have now?
  38. 38.1 + ? = 18
  39. 39.5 + 7 + 6 =
  40. 40.? + 1 = 11

Answer key

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

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