Here is one way to take apart 3.
3
=
1
+
2
Show a different way to take apart 3.
3
=
+
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
ref_doc_title.
Jumping to level 1 of 1
Excellent!
Now entering the Challenge Zone—are you ready?
Now entering the Challenge Zone—are you ready?