How do you write 4.00 in expanded form?

Answer 1

The phrase expanded form can have several meanings, depending on the level of math you are at.

The simplest answer is "4".

Another answer (prime decomposition) is 2 x 2 or 2^2.

Answer 2

400 = (4 x 100) + (0 x 10) + (0 x 1)