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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 852 · 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. 1.7 + 1 + 9 =
  2. 2.Sneha has 12 balloons and gets 1 balloon more. How many balloons does Sneha have now?
  3. 3.? + 2 = 12
  4. 4.? + 3 = 5
  5. 5.4 + 8 + 2 =
  6. 6.15 + 1 =
  7. 7.? + 3 = 4
  8. 8.16 + 4 =
  9. 9.7 + 5 + 3 =
  10. 10.11 + 6 =
  11. 11.1 + 3 =
  12. 12.3 + 6 + 10 =
  13. 13.3 + 4 =
  14. 14.Ishaan has 3 bananas and gets 16 bananas more. How many bananas does Ishaan have now?
  15. 15.2 + 13 =
  16. 16.Aarav has 6 pencils and gets 1 pencil more. How many pencils does Aarav have now?
  17. 17.There are 5 green crayons and 4 white crayons. How many crayons are there in all?
  18. 18.12 + ? = 17
  19. 19.Zoya has 12 marbles and gets 2 marbles more. How many marbles does Zoya have now?
  20. 20.5 + 5 + 3 =
  21. 21.3 + 15 =
  22. 22.Ananya has 8 shells and gets 4 shells more. How many shells does Ananya have now?
  23. 23.There are 3 pink kites and 16 green kites. How many kites are there in all?
  24. 24.? + 6 = 7
  25. 25.Pooja has 5 flowers and gets 5 flowers more. How many flowers does Pooja have now?
  26. 26.Zoya has 4 books and gets 14 books more. How many books does Zoya have now?
  27. 27.? + 7 = 18
  28. 28.Vivaan has 7 balls and gets 4 balls more. How many balls does Vivaan have now?
  29. 29.7 + 5 =
  30. 30.3 + 1 + 13 =
  31. 31.? + 4 = 7
  32. 32.9 + 8 =
  33. 33.Meera has 9 mangoes and gets 1 mango more. How many mangoes does Meera have now?
  34. 34.Ishaan has 8 balls and gets 12 balls more. How many balls does Ishaan have now?
  35. 35.6 + 3 =
  36. 36.2 + 2 + 14 =
  37. 37.Joseph has 4 crayons and gets 3 crayons more. How many crayons does Joseph have now?
  38. 38.Kavya has 2 bananas and gets 6 bananas more. How many bananas does Kavya have now?
  39. 39.There are 5 blue beads and 6 yellow beads. How many beads are there in all?
  40. 40.Farhan has 7 books and gets 2 books more. How many books does Farhan have now?

Answer key

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

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