1st grade math word problems

There are 7 balloons. 2 balloons pop. How many balloons are left?

I see 6 red birds. 4 flew away. How many birds are left?

There are 5 fish. 4 swam away. How many fish are left?

Fran saw 2 cars. Then she saw 2 more. How many cars did she see?

Amy sings 2 songs. Then she sings 4 more songs. How many songs did Amy sing?

Jan has 3 apples. Nick has 3 apples. How many apples do they have in all?

We saw a boat. Then we saw 6 more boats. How many boats did we see?

We had 5 cups. 2 cups broke. How many cups do we have now?

I have 1 key. My mom has 3 keys. How many keys do we have?

Max is a dog. He has 2 red balls and 1 blue ball. How many balls does he have in all?