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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 7 · 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 + 2 =
  2. 2.9 + 4 =
  3. 3.1 + 17 =
  4. 4.3 + 7 + 1 =
  5. 5.2 + 5 =
  6. 6.Pooja has 2 shells and gets 3 shells more. How many shells does Pooja have now?
  7. 7.3 + 16 =
  8. 8.5 + 1 + 2 =
  9. 9.There are 4 blue flowers and 10 green flowers. How many flowers are there in all?
  10. 10.3 + 4 + 7 =
  11. 11.There are 3 white crayons and 8 blue crayons. How many crayons are there in all?
  12. 12.Arjun has 13 flowers and gets 5 flowers more. How many flowers does Arjun have now?
  13. 13.14 + 3 =
  14. 14.? + 3 = 8
  15. 15.Manav has 11 balloons and gets 1 balloon more. How many balloons does Manav have now?
  16. 16.10 + ? = 16
  17. 17.2 + 17 =
  18. 18.? + 7 = 9
  19. 19.1 + 5 + 13 =
  20. 20.Joseph has 13 laddoos and gets 6 laddoos more. How many laddoos does Joseph have now?
  21. 21.Kavya has 15 bananas and gets 1 banana more. How many bananas does Kavya have now?
  22. 22.? + 2 = 5
  23. 23.9 + ? = 14
  24. 24.5 + 2 + 1 =
  25. 25.4 + 8 + 7 =
  26. 26.1 + ? = 3
  27. 27.Diya has 7 crayons and gets 8 crayons more. How many crayons does Diya have now?
  28. 28.Rohan has 4 crayons and gets 9 crayons more. How many crayons does Rohan have now?
  29. 29.1 + 1 + 4 =
  30. 30.There are 4 yellow kites and 12 green kites. How many kites are there in all?
  31. 31.Ananya has 5 bananas and gets 1 banana more. How many bananas does Ananya have now?
  32. 32.Joseph has 15 books and gets 2 books more. How many books does Joseph have now?
  33. 33.Rahul has 13 laddoos and gets 2 laddoos more. How many laddoos does Rahul have now?
  34. 34.? + 2 = 9
  35. 35.There are 4 white balls and 13 red balls. How many balls are there in all?
  36. 36.8 + 1 =
  37. 37.There are 2 red beads and 9 yellow beads. How many beads are there in all?
  38. 38.15 + 2 =
  39. 39.? + 8 = 19
  40. 40.Nisha has 7 kites and gets 8 kites more. How many kites does Nisha have now?

Answer key

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

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