what is 42.257 written in expanded form?

Is it (4x10) plus (2x1) plus (2x1) plus (5x10) plus (7x100)
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1 Answer

42.257 in expanded form:

40 + 2 + 0.2 + 0.05 + 0.07

42.257 in expanded form with exponents:

4*10^1 + 2*10^0 + 2*10^(-1) + 5*10^(-2) + 7*10^(-3)
by Level 13 User (103k points)

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