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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 517 · 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.There are 11 yellow kites and 5 white kites. How many kites are there in all?
  2. 2.3 + 4 =
  3. 3.Rahul has 6 balls and gets 2 balls more. How many balls does Rahul have now?
  4. 4.? + 7 = 12
  5. 5.7 + 6 + 3 =
  6. 6.6 + 6 + 7 =
  7. 7.There are 9 red flowers and 2 white flowers. How many flowers are there in all?
  8. 8.There are 11 green crayons and 3 red crayons. How many crayons are there in all?
  9. 9.There are 4 red crayons and 8 white crayons. How many crayons are there in all?
  10. 10.? + 6 = 12
  11. 11.There are 8 green balls and 6 white balls. How many balls are there in all?
  12. 12.There are 12 pink flowers and 4 green flowers. How many flowers are there in all?
  13. 13.Meera has 5 kites and gets 8 kites more. How many kites does Meera have now?
  14. 14.? + 1 = 5
  15. 15.8 + 3 + 2 =
  16. 16.Kabir has 2 marbles and gets 3 marbles more. How many marbles does Kabir have now?
  17. 17.Karan has 11 pencils and gets 2 pencils more. How many pencils does Karan have now?
  18. 18.Rahul has 9 laddoos and gets 5 laddoos more. How many laddoos does Rahul have now?
  19. 19.Gurpreet has 15 bananas and gets 2 bananas more. How many bananas does Gurpreet have now?
  20. 20.There are 8 white beads and 2 blue beads. How many beads are there in all?
  21. 21.7 + 3 + 7 =
  22. 22.1 + ? = 14
  23. 23.There are 12 white balls and 7 green balls. How many balls are there in all?
  24. 24.Kabir has 2 books and gets 10 books more. How many books does Kabir have now?
  25. 25.Sneha has 2 marbles and gets 12 marbles more. How many marbles does Sneha have now?
  26. 26.Isha has 9 bananas and gets 3 bananas more. How many bananas does Isha have now?
  27. 27.Ishaan has 2 flowers and gets 2 flowers more. How many flowers does Ishaan have now?
  28. 28.16 + 1 =
  29. 29.12 + ? = 19
  30. 30.? + 9 = 15
  31. 31.18 + 1 =
  32. 32.? + 11 = 19
  33. 33.19 + 1 =
  34. 34.2 + ? = 4
  35. 35.2 + ? = 5
  36. 36.3 + 3 + 4 =
  37. 37.8 + 1 + 2 =
  38. 38.Joseph has 3 mangoes and gets 13 mangoes more. How many mangoes does Joseph have now?
  39. 39.? + 10 = 13
  40. 40.There are 3 red flowers and 9 pink flowers. How many flowers are there in all?

Answer key

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

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