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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 715 · 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.Riya has 2 bananas and gets 18 bananas more. How many bananas does Riya have now?
  2. 2.15 + 4 =
  3. 3.? + 1 = 3
  4. 4.? + 3 = 4
  5. 5.? + 3 = 9
  6. 6.There are 8 red kites and 2 white kites. How many kites are there in all?
  7. 7.4 + 8 + 1 =
  8. 8.Isha has 11 balls and gets 8 balls more. How many balls does Isha have now?
  9. 9.Rohan has 3 shells and gets 17 shells more. How many shells does Rohan have now?
  10. 10.9 + ? = 13
  11. 11.Zoya has 14 marbles and gets 1 marble more. How many marbles does Zoya have now?
  12. 12.There are 7 pink balloons and 4 blue balloons. How many balloons are there in all?
  13. 13.Vivaan has 9 balls and gets 10 balls more. How many balls does Vivaan have now?
  14. 14.Dev has 2 laddoos and gets 14 laddoos more. How many laddoos does Dev have now?
  15. 15.2 + 2 + 15 =
  16. 16.There are 3 yellow balloons and 9 pink balloons. How many balloons are there in all?
  17. 17.? + 4 = 17
  18. 18.Pooja has 5 laddoos and gets 2 laddoos more. How many laddoos does Pooja have now?
  19. 19.Sneha has 9 books and gets 10 books more. How many books does Sneha have now?
  20. 20.Aditya has 5 marbles and gets 10 marbles more. How many marbles does Aditya have now?
  21. 21.There are 3 green flowers and 15 blue flowers. How many flowers are there in all?
  22. 22.? + 3 = 7
  23. 23.2 + 1 + 3 =
  24. 24.6 + 6 + 5 =
  25. 25.2 + 4 + 9 =
  26. 26.There are 5 pink beads and 14 red beads. How many beads are there in all?
  27. 27.17 + 2 =
  28. 28.There are 12 pink balloons and 7 yellow balloons. How many balloons are there in all?
  29. 29.Lakshmi has 10 shells and gets 2 shells more. How many shells does Lakshmi have now?
  30. 30.5 + 13 =
  31. 31.There are 2 white crayons and 5 blue crayons. How many crayons are there in all?
  32. 32.? + 10 = 19
  33. 33.14 + 4 =
  34. 34.Vivaan has 12 mangoes and gets 3 mangoes more. How many mangoes does Vivaan have now?
  35. 35.? + 5 = 9
  36. 36.1 + 8 =
  37. 37.There are 4 yellow beads and 4 white beads. How many beads are there in all?
  38. 38.8 + 5 =
  39. 39.10 + 5 =
  40. 40.Diya has 14 pencils and gets 3 pencils more. How many pencils does Diya have now?

Answer key

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

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