AdditionGrade 1

Adding Up: Grade 1 Word Problems Within 20

Practice solving real-world addition word problems by adding to, putting together, and comparing amounts using numbers within 20 to build fact fluency.

CCSSAligned to Common Core 1.OA.1: Use addition and subtraction within 20 to solve word problems involving adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.
22 problemsAnswer key included

Read each story problem carefully and write the answer on the line.

  1. 1.Sam has 3 red apples and 5 green apples. How many apples does Sam have in all?
  2. 2.There are 6 ducks in a pond. Then 4 more ducks swim over. How many ducks are in the pond now?
  3. 3.Lily picked 7 flowers. Her friend gave her 2 more flowers. How many flowers does Lily have now?
  4. 4.There are 8 children on the playground. Then 5 more children come out to play. How many children are on the playground now?
  5. 5.A basket has 9 oranges and 4 bananas. How many pieces of fruit are in the basket altogether?
  6. 6.Tom has 6 toy cars. His dad gives him 7 more. How many toy cars does Tom have in all?
  7. 7.There are 5 birds sitting in a tree. Then 8 more birds fly over and land in the tree. How many birds are in the tree now?
  8. 8.Maya read 4 books last week and 9 books this week. How many books did she read in all?
  9. 9.There are 7 boys and 6 girls at a birthday party. How many children are at the party in all?
  10. 10.Jake has 10 stickers. His teacher gives him 3 more stickers. How many stickers does Jake have now?
  11. 11.There are 8 frogs on a log and 7 frogs in the water. How many frogs are there altogether?
  12. 12.A bag has 6 red marbles and 9 blue marbles. How many marbles are in the bag in all?
  13. 13.Ana has 5 crayons. She finds 10 more crayons in her desk. How many crayons does Ana have now?
  14. 14.There were 9 cookies on a plate. Mom put 6 more cookies on the plate. How many cookies are on the plate now?
  15. 15.Ben caught 8 fireflies in a jar. Then he caught 8 more. How many fireflies does Ben have in all?
  16. 16.There are 7 students working at tables and 9 students on the rug. How many students are there in all?
  17. 17.Rosa has 10 building blocks. She gets 7 more blocks for her birthday. How many blocks does Rosa have now?
  18. 18.There are 9 dogs at the park in the morning. Then 9 more dogs arrive. How many dogs are at the park now?
  19. 19.A library shelf has 10 picture books and 8 chapter books. How many books are on the shelf in all?
  20. 20.Carlos scored 9 points in the first game and 9 points in the second game. How many points did he score in all?
  21. 21.There are 10 ladybugs on a leaf and 9 ladybugs on a flower. How many ladybugs are there altogether?
  22. 22.Zoe has 10 pennies in her piggy bank. Her grandma gives her 10 more pennies. How many pennies does Zoe have in all?

This free printable grade 1 addition worksheet includes 22 problems and a complete answer key. Download the PDF above to print at home or in the classroom.

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