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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 973 · 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. 1.11 + 5 =
  2. 2.14 + 2 =
  3. 3.There are 6 pink flowers and 6 red flowers. How many flowers are there in all?
  4. 4.There are 7 red balloons and 8 pink balloons. How many balloons are there in all?
  5. 5.6 + 1 =
  6. 6.19 + 1 =
  7. 7.? + 2 = 12
  8. 8.8 + 8 + 3 =
  9. 9.There are 11 pink kites and 4 green kites. How many kites are there in all?
  10. 10.6 + 5 + 3 =
  11. 11.There are 7 white flowers and 6 green flowers. How many flowers are there in all?
  12. 12.There are 12 pink flowers and 8 blue flowers. How many flowers are there in all?
  13. 13.Priya has 2 bananas and gets 8 bananas more. How many bananas does Priya have now?
  14. 14.1 + 12 =
  15. 15.7 + 6 + 4 =
  16. 16.17 + 3 =
  17. 17.4 + 1 + 4 =
  18. 18.There are 7 red crayons and 13 green crayons. How many crayons are there in all?
  19. 19.Kavya has 2 shells and gets 18 shells more. How many shells does Kavya have now?
  20. 20.5 + 4 =
  21. 21.There are 7 green kites and 6 red kites. How many kites are there in all?
  22. 22.8 + ? = 11
  23. 23.? + 8 = 14
  24. 24.There are 4 white beads and 5 red beads. How many beads are there in all?
  25. 25.5 + 4 + 6 =
  26. 26.Tara has 9 mangoes and gets 9 mangoes more. How many mangoes does Tara have now?
  27. 27.5 + 11 =
  28. 28.Sneha has 7 mangoes and gets 5 mangoes more. How many mangoes does Sneha have now?
  29. 29.There are 7 white balloons and 3 red balloons. How many balloons are there in all?
  30. 30.5 + 8 =
  31. 31.There are 3 white crayons and 2 red crayons. How many crayons are there in all?
  32. 32.Kavya has 10 pencils and gets 8 pencils more. How many pencils does Kavya have now?
  33. 33.14 + 4 =
  34. 34.There are 12 red flowers and 6 pink flowers. How many flowers are there in all?
  35. 35.? + 1 = 16
  36. 36.Meera has 5 books and gets 10 books more. How many books does Meera have now?
  37. 37.5 + ? = 6
  38. 38.16 + 4 =
  39. 39.There are 8 green flowers and 7 red flowers. How many flowers are there in all?
  40. 40.2 + 3 + 10 =

Answer key

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

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