412.638 = (400/1) + (10/1) + (2/1) + (6/10) + (3/100) + (8/1000)
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6.08 = (6 x 1) + (0/10) + (8/100)
4.875 = (4 x 1) + (8/10) + (7/100) + (5/1000)
2.5 x 105 = 250,000
81.402 in expanded form using the powers of ten = (8 x 10^1) + (1 x 10^0) + (4/10^1) + (0/10^2) + (2/10^3)
In expanded form 5.68 is 5 + 0.6 + 0.08