Result Unknown
Change Unknown
Start Unknown
What kind of unknown word problem are these?
100

Wesley has 6 toy cars. Meg has 5 toy cars. How many toy cars do they have altogether?

Wesley and Meg have 11 toy cars. 

100

Tommy had 5 dollars.  He spent some at the candy store. Now, he has 3 dollars. How much did he spend?

Tommy spent 2 dollars. 

100

Some notebooks were in the basket. Mrs. Freund added 5 more notebooks. Now there are 16 notebooks in the basket. How many were in the basket before?

11 notebooks were in the basket. 

100

Jordan has 11 chocolate bars. He gave 5 to his friend. How many chocolate bars does Jordan have left?

What is Result Unknown?

200

There are 13 frogs on a log. 7 more frogs joined them. How many frogs are on the log?

There are 20 frogs on the log. 

200

Five monkeys were jumping on the bed. Some more joined  them. Then, there were twelve monkeys on the bed. How many monkeys joined them?

7 monkeys joined them. 

200

We see some bugs on a log. 14 bugs hop off. Now there are 5 bugs on the log. How many bugs were on the log at the beginning?

19 bugs were on the log. 

200

Sam had 13 balls. He gave some to his friends. Now he has 5 balls. How many balls did he give to his friends? 

What is change unknown? 

300

Mrs. Freund baked 16 chocolate chip cookies. Ms. Mehaffey ate 6 chocolate chip cookies. How many cookies are left?

There are 10 cookie left. 

300

Jack has 12 pokemon cards total. He began with 3 pokemon cards. His friend gave him some more. How many pokemon cards did Jack's friend give him?

Jack's friend gave him 9 pokemon cards. 

300

There were a few kites at the beach. Five flew away. Now there are 17 left. How many kites were at the beach to start with?

22 kites were at the beach. 

300

Amelia had some cookies. She have 8 to her brother. Now she has 12 left. How many cookies did Amelia have at the beginning? 

What is start unknown? 
400

Chick-fil-a cooked 8 chicken sandwiches on Monday. On Tuesday, they cooked 8 more hamburgers. How many total chicken sandwiches did Chick-fil-a cook?

Chick-fil-a cooked 16 chicken sandwiches. 

400

A pet shop has 19 pets. On Saturday, several families came in and adopted some pets. Now there are 5 pets left. How many pets were adopted on Saturday?

14 pets were adopted on Saturday.

400

Some ducks were in a pond. 9 ducks swam away. There are 14 ducks left in the pond. How many ducks were in the pond to start with?

23 ducks were in the pond. 

400

Sarah has 6 hotdogs. She bought 7 more. How many hotdogs does Sarah have in all?

What is result unknown? 

500

Mrs. Gerard bought 25 pencils. Her students lost 12 pencils. How many pencils does Mrs. Gerard have left?

Mrs. Gerard has 13 pencils left. 

500

20 kids were playing at recess. Some are swinging and 13 are running races. How many kids are swinging?

7 kids are swinging. 

500

Mrs. Smith had some tacos. She ate 8 tacos. Now she has three tacos left. How many tacos did Mrs. Smith have to start?

Mrs. Smith had 11 tacos. 

500

There are some cupcakes on the table. Mrs. Smith added 5 more cupcakes to the table. Now there is 15 cupcakes. How many cupcakes were on the table to start? 

What is start unknown? 

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