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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 693 · 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.Karan has 4 balloons and gets 1 balloon more. How many balloons does Karan have now?
  2. 2.Tara has 4 marbles and gets 4 marbles more. How many marbles does Tara have now?
  3. 3.Kabir has 8 shells and gets 4 shells more. How many shells does Kabir have now?
  4. 4.13 + 2 =
  5. 5.19 + 1 =
  6. 6.There are 10 red balloons and 6 pink balloons. How many balloons are there in all?
  7. 7.There are 8 blue crayons and 5 white crayons. How many crayons are there in all?
  8. 8.Nisha has 11 balls and gets 5 balls more. How many balls does Nisha have now?
  9. 9.10 + 10 =
  10. 10.There are 8 blue balls and 2 white balls. How many balls are there in all?
  11. 11.Manav has 14 flowers and gets 4 flowers more. How many flowers does Manav have now?
  12. 12.There are 7 yellow crayons and 8 red crayons. How many crayons are there in all?
  13. 13.6 + ? = 7
  14. 14.4 + 3 =
  15. 15.2 + 2 + 6 =
  16. 16.There are 3 green balloons and 15 red balloons. How many balloons are there in all?
  17. 17.9 + ? = 20
  18. 18.There are 9 red balloons and 2 green balloons. How many balloons are there in all?
  19. 19.Diya has 6 balloons and gets 1 balloon more. How many balloons does Diya have now?
  20. 20.There are 6 blue flowers and 13 red flowers. How many flowers are there in all?
  21. 21.There are 6 pink beads and 2 red beads. How many beads are there in all?
  22. 22.Zoya has 7 laddoos and gets 9 laddoos more. How many laddoos does Zoya have now?
  23. 23.Nisha has 13 books and gets 4 books more. How many books does Nisha have now?
  24. 24.There are 3 white balloons and 5 red balloons. How many balloons are there in all?
  25. 25.Zoya has 14 mangoes and gets 1 mango more. How many mangoes does Zoya have now?
  26. 26.7 + 9 =
  27. 27.17 + 3 =
  28. 28.There are 3 white balloons and 4 yellow balloons. How many balloons are there in all?
  29. 29.Riya has 6 laddoos and gets 3 laddoos more. How many laddoos does Riya have now?
  30. 30.Gurpreet has 10 crayons and gets 6 crayons more. How many crayons does Gurpreet have now?
  31. 31.Joseph has 4 laddoos and gets 14 laddoos more. How many laddoos does Joseph have now?
  32. 32.There are 6 blue kites and 3 red kites. How many kites are there in all?
  33. 33.7 + 7 + 3 =
  34. 34.8 + 3 =
  35. 35.? + 4 = 12
  36. 36.There are 9 yellow balloons and 5 white balloons. How many balloons are there in all?
  37. 37.Rohan has 13 bananas and gets 4 bananas more. How many bananas does Rohan have now?
  38. 38.Rohan has 13 flowers and gets 2 flowers more. How many flowers does Rohan have now?
  39. 39.Isha has 3 crayons and gets 11 crayons more. How many crayons does Isha have now?
  40. 40.Diya has 5 marbles and gets 2 marbles more. How many marbles does Diya have now?

Answer key

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

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