?
3 birds are in a tree. More birds join. Now there are 9. How many joined?
6 birds
Eric has 2 books. He gets some more. Now he has 8. How many books did he get? Which equation matches the problem?
a. 2 + 8 = ?
b. 2 + ? = 8
b. 2 + ? = 8
6 frogs are in a pond. More frogs join. Now there are 10? How many frogs joined.
4 frogs
Kyla has 4 books. She gets more. Now there are 10. How many books did Kyla get?
6 books
A tree has 5 apples. New apples grow. Now there are 9. How many new apples grew?
4 apples
Tam has 6 crayons. He gets more. Now Tam has 9. How many did he get? Which equation matches the problem?
a. 6 + ? = 9
b. 6 + 9 = ?
a. 6 + ? = 9