The expanded form for 300,684 can be written with only 4 addends. explain how this is possible for a number with 6 digits

300,000 + 600+80+4; you only use the addends of the digits with value when writing a number in expanded form.

Step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

the answer to your question is b.