Problem Solving and the Common Core

Appendix

Theme- Classroom Happenings:

The problems shown below are just a selection from a larger collection.

Add to

Add to result unknown

I have 3 books. Then I get 4 more. How many books do I have now?

3 children are working in the math center. 6 more join them. How many children are working in the math center now?

9 students put their coats in the locker. Then 6 more students put their coats in the locker. How many students have put their coats in the locker?

Add to change unknown

I have 3 books. Then I get some more at the library. Now I have 7 books. How many books did I get at the library?

There were 4 folders at my workstation. Mrs. Brulia gave me some more. Now I have 10 folders. How many more folders did Mrs. Brulia give me?

Kameron makes 5 block towers. Jaylen makes some block towers, too. There are 15 towers. How many towers did Jaylen build?

Add to start unknown

I have some books. Then I went to the library to get 4 more. Now I have 11 books. How many more books did I have before?

I have some folders. You have 10 folders. Altogether we have 12 folders. How many folders do I have?

Kameron makes some block towers. Jaylen makes 4 block towers. They made a total of 20 towers. How many towers did Kameron make?

Take from

Take from result unknown

Kameron has 10 books. He gave 3 to Jaylen. How many books does he have left?

Bri’Air buys a bag with 10 crackers in it. He eats 6 of them. How many crackers are left?

6 people are waiting at school for the bus. Then 4 of them go home. How many people are still waiting for their bus?

Take from change unknown

We have 8 library books. We return some of them. Now we have 5 library books. How many books did we return?

Bry’Air buys a bag with 10 crackers in it. He eats some of them. He has 5 left. How many crackers did he eat?

6 people are waiting at school for the bus. Then some of them go home. There are 2 still waiting. How many people already went home?

Take from to start unknown

Jaylen has some crayons. He gave 3 to Kameron. Now Jaylen has 7 crayons left. How many crayons did he start with?

We had some library books. We return 3 of them. Now we have 5 library books. How many books did we have to start?

Bry’Air buys a bag with some crackers in it. He eats 5 of them. He has 5 left. How many crackers were in the bag?

Part-Part-Whole

Part-Part- whole, whole unknown (Put together/ take apart total unknown)

7 boys and 2 girls got in line to go to Music class. How many students are in line?

5 children said they liked the story. 4 children said they didn't like the story. How many children discussed the story?

9 students have a special class 4^th period. 5 students have music class. The rest have art class. How many students have art?

Put together/ take apart addend unknown

Jaylen has 13 coins. He has 9 dimes and some nickels in his pocket. How many nickels does he have?

I have 12 counters. I have 9 red counters. How many counters are not red?

9 children listened to the story. 5 children said they liked the story. How many children didn't like the story?

Compare

Compare difference unknown

Bry’Air has 10 crayons. Jaylen has 14 crayons. How many fewer crayons does Bry’Air have than Jaylen?

There are 2 girls in line. There are 7 boys. How many more boys are in line than girls?

There are 2 girls in line. There are 7 boys. How many fewer girls are in line than boys?

Compare bigger unknown

Bry’Air has 8 books. Jaylen has 6 more books than Bry’Air. How many books does Jaylen have?

Bry’Air has 8 books. Bry’Air has 6 fewer books than Jaylen. How many books does Jaylen have?

Bry’Air has 10 crayons. Jaylen has 6 more crayons than Bry’Air. How many crayons does Jaylen have?

Compare smaller unknown

Jaylen has read 14 books. Kameron has read 6 fewer books than Jaylen. How many books has Kameron read?

Jaylen has read 14 books. Jaylen has read 6 more books than Bry’Air. How many books has Bry’Air read?

Jaylen has 18 comic books. Kameron has 9 fewer comic books than Jaylen. How many comic books does Kameron have?