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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 379 · 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.Meera has 5 mangoes and gets 8 mangoes more. How many mangoes does Meera have now?
  2. 2.8 + 8 + 3 =
  3. 3.6 + 6 + 6 =
  4. 4.Nisha has 15 flowers and gets 4 flowers more. How many flowers does Nisha have now?
  5. 5.12 + 2 =
  6. 6.2 + ? = 3
  7. 7.There are 10 blue balls and 2 white balls. How many balls are there in all?
  8. 8.7 + 8 =
  9. 9.15 + 1 =
  10. 10.7 + 8 + 3 =
  11. 11.Rahul has 8 balloons and gets 6 balloons more. How many balloons does Rahul have now?
  12. 12.2 + 16 =
  13. 13.10 + 10 =
  14. 14.Sneha has 7 marbles and gets 5 marbles more. How many marbles does Sneha have now?
  15. 15.13 + 6 =
  16. 16.9 + 7 =
  17. 17.There are 12 pink crayons and 8 red crayons. How many crayons are there in all?
  18. 18.7 + 7 + 1 =
  19. 19.18 + 2 =
  20. 20.There are 6 blue beads and 5 yellow beads. How many beads are there in all?
  21. 21.There are 7 red kites and 5 white kites. How many kites are there in all?
  22. 22.Lakshmi has 9 balloons and gets 7 balloons more. How many balloons does Lakshmi have now?
  23. 23.4 + ? = 6
  24. 24.17 + 1 =
  25. 25.16 + 1 =
  26. 26.14 + ? = 16
  27. 27.Sneha has 10 kites and gets 2 kites more. How many kites does Sneha have now?
  28. 28.Kavya has 14 bananas and gets 3 bananas more. How many bananas does Kavya have now?
  29. 29.There are 2 white crayons and 2 red crayons. How many crayons are there in all?
  30. 30.1 + 8 + 1 =
  31. 31.? + 2 = 3
  32. 32.3 + 13 =
  33. 33.? + 1 = 19
  34. 34.There are 10 white flowers and 7 yellow flowers. How many flowers are there in all?
  35. 35.7 + ? = 8
  36. 36.4 + 13 =
  37. 37.6 + ? = 11
  38. 38.There are 6 green kites and 10 blue kites. How many kites are there in all?
  39. 39.? + 1 = 16
  40. 40.Lakshmi has 8 balls and gets 7 balls more. How many balls does Lakshmi have now?

Answer key

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

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