grade 1 · WN-001

Find the unknown in a story

Represent adding to, putting together, taking from, and comparing with an unknown in different positions.

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Try with a hintFresh problem · seed 1016280425

Some birds were in a tree. 7 more arrived, and then there were 16. How many were there at first?

Give me one hint

Name what is known at the start, what changes, and the result.