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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 172 · 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. 1.6 + 2 =
  2. 2.There are 11 yellow flowers and 2 red flowers. How many flowers are there in all?
  3. 3.17 + 1 =
  4. 4.There are 6 blue kites and 7 green kites. How many kites are there in all?
  5. 5.Diya has 11 mangoes and gets 7 mangoes more. How many mangoes does Diya have now?
  6. 6.Nisha has 10 mangoes and gets 3 mangoes more. How many mangoes does Nisha have now?
  7. 7.There are 8 white beads and 10 red beads. How many beads are there in all?
  8. 8.Aditya has 10 crayons and gets 8 crayons more. How many crayons does Aditya have now?
  9. 9.4 + 3 + 5 =
  10. 10.13 + 2 =
  11. 11.? + 4 = 12
  12. 12.15 + 2 =
  13. 13.17 + 2 =
  14. 14.Ananya has 10 marbles and gets 1 marble more. How many marbles does Ananya have now?
  15. 15.Tara has 3 mangoes and gets 9 mangoes more. How many mangoes does Tara have now?
  16. 16.Rohan has 5 marbles and gets 1 marble more. How many marbles does Rohan have now?
  17. 17.11 + 1 =
  18. 18.? + 4 = 6
  19. 19.4 + 2 + 12 =
  20. 20.3 + ? = 5
  21. 21.4 + 4 + 4 =
  22. 22.There are 10 white balls and 10 blue balls. How many balls are there in all?
  23. 23.? + 7 = 13
  24. 24.2 + ? = 3
  25. 25.9 + ? = 16
  26. 26.Zoya has 2 flowers and gets 9 flowers more. How many flowers does Zoya have now?
  27. 27.There are 3 blue kites and 15 yellow kites. How many kites are there in all?
  28. 28.Nisha has 4 books and gets 11 books more. How many books does Nisha have now?
  29. 29.Sneha has 13 balls and gets 1 ball more. How many balls does Sneha have now?
  30. 30.There are 12 blue flowers and 7 yellow flowers. How many flowers are there in all?
  31. 31.Riya has 2 balloons and gets 12 balloons more. How many balloons does Riya have now?
  32. 32.Gurpreet has 12 laddoos and gets 8 laddoos more. How many laddoos does Gurpreet have now?
  33. 33.There are 2 pink balls and 5 white balls. How many balls are there in all?
  34. 34.There are 5 yellow beads and 15 red beads. How many beads are there in all?
  35. 35.There are 4 green balloons and 9 yellow balloons. How many balloons are there in all?
  36. 36.3 + 14 =
  37. 37.Nisha has 3 laddoos and gets 4 laddoos more. How many laddoos does Nisha have now?
  38. 38.7 + 6 + 3 =
  39. 39.Ananya has 5 bananas and gets 10 bananas more. How many bananas does Ananya have now?
  40. 40.Aarav has 4 pencils and gets 11 pencils more. How many pencils does Aarav have now?

Answer key

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

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