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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 92 · 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.Rohan has 14 marbles and gets 4 marbles more. How many marbles does Rohan have now?
  2. 2.1 + 2 + 10 =
  3. 3.There are 5 red balls and 9 blue balls. How many balls are there in all?
  4. 4.4 + 1 + 6 =
  5. 5.? + 1 = 8
  6. 6.1 + ? = 7
  7. 7.2 + 2 + 5 =
  8. 8.There are 10 yellow flowers and 8 blue flowers. How many flowers are there in all?
  9. 9.There are 4 white balls and 2 red balls. How many balls are there in all?
  10. 10.There are 11 red balloons and 2 white balloons. How many balloons are there in all?
  11. 11.There are 3 red balloons and 11 pink balloons. How many balloons are there in all?
  12. 12.1 + 8 + 3 =
  13. 13.8 + 9 =
  14. 14.Arjun has 8 flowers and gets 2 flowers more. How many flowers does Arjun have now?
  15. 15.? + 7 = 12
  16. 16.Ananya has 7 bananas and gets 8 bananas more. How many bananas does Ananya have now?
  17. 17.5 + 2 + 7 =
  18. 18.There are 6 blue kites and 12 red kites. How many kites are there in all?
  19. 19.Riya has 15 balls and gets 3 balls more. How many balls does Riya have now?
  20. 20.There are 12 green flowers and 6 yellow flowers. How many flowers are there in all?
  21. 21.15 + 1 =
  22. 22.? + 1 = 11
  23. 23.Arjun has 9 pencils and gets 9 pencils more. How many pencils does Arjun have now?
  24. 24.? + 5 = 16
  25. 25.? + 12 = 20
  26. 26.Nisha has 12 laddoos and gets 2 laddoos more. How many laddoos does Nisha have now?
  27. 27.14 + 6 =
  28. 28.There are 5 yellow beads and 15 blue beads. How many beads are there in all?
  29. 29.There are 9 blue flowers and 8 green flowers. How many flowers are there in all?
  30. 30.There are 9 yellow kites and 4 green kites. How many kites are there in all?
  31. 31.There are 5 blue beads and 3 red beads. How many beads are there in all?
  32. 32.Gurpreet has 7 flowers and gets 5 flowers more. How many flowers does Gurpreet have now?
  33. 33.8 + 6 + 1 =
  34. 34.2 + 18 =
  35. 35.There are 3 red flowers and 8 green flowers. How many flowers are there in all?
  36. 36.Ananya has 2 pencils and gets 9 pencils more. How many pencils does Ananya have now?
  37. 37.? + 1 = 6
  38. 38.There are 3 white flowers and 3 pink flowers. How many flowers are there in all?
  39. 39.There are 2 white balls and 10 yellow balls. How many balls are there in all?
  40. 40.5 + 1 + 3 =

Answer key

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

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