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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 840 · 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. 1.16 + 1 =
  2. 2.There are 2 yellow balls and 4 pink balls. How many balls are there in all?
  3. 3.4 + ? = 11
  4. 4.1 + 17 =
  5. 5.Farhan has 10 books and gets 2 books more. How many books does Farhan have now?
  6. 6.1 + 1 + 17 =
  7. 7.3 + 1 + 8 =
  8. 8.3 + 12 =
  9. 9.Joseph has 4 bananas and gets 7 bananas more. How many bananas does Joseph have now?
  10. 10.There are 8 green kites and 9 white kites. How many kites are there in all?
  11. 11.11 + 6 =
  12. 12.18 + 1 =
  13. 13.2 + 6 + 9 =
  14. 14.There are 3 red beads and 13 yellow beads. How many beads are there in all?
  15. 15.There are 10 pink kites and 7 white kites. How many kites are there in all?
  16. 16.? + 6 = 9
  17. 17.Arjun has 5 laddoos and gets 2 laddoos more. How many laddoos does Arjun have now?
  18. 18.There are 5 green kites and 8 yellow kites. How many kites are there in all?
  19. 19.There are 9 white flowers and 5 blue flowers. How many flowers are there in all?
  20. 20.6 + 7 + 5 =
  21. 21.14 + 2 =
  22. 22.There are 3 red balloons and 8 yellow balloons. How many balloons are there in all?
  23. 23.1 + 4 + 1 =
  24. 24.1 + 6 + 11 =
  25. 25.1 + ? = 7
  26. 26.10 + 3 =
  27. 27.6 + 1 =
  28. 28.Vivaan has 11 kites and gets 6 kites more. How many kites does Vivaan have now?
  29. 29.Meera has 5 bananas and gets 5 bananas more. How many bananas does Meera have now?
  30. 30.15 + 4 =
  31. 31.1 + 3 + 2 =
  32. 32.? + 10 = 17
  33. 33.There are 10 red flowers and 6 blue flowers. How many flowers are there in all?
  34. 34.There are 2 white beads and 16 yellow beads. How many beads are there in all?
  35. 35.1 + 9 =
  36. 36.There are 10 pink balloons and 8 yellow balloons. How many balloons are there in all?
  37. 37.Ishaan has 3 bananas and gets 13 bananas more. How many bananas does Ishaan have now?
  38. 38.There are 3 yellow balloons and 11 green balloons. How many balloons are there in all?
  39. 39.5 + 8 =
  40. 40.1 + 7 + 4 =

Answer key

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

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