write in the expanded form. for the decimal parts, write the values as common fractions.
a) 0.028
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For a decimal number, each of the decimal digits is written as an exponent of one-tenth. The decimal 0.436 can be written in expanded form as 0.436 = 4 × (1/10) + 3 × (1/10)2 + 6 ×(1/10)3 = 4 × (1/10) + 3 × (1/100) + 6 ×(1/1000) = 0.4 + 0.03 + 0.006.
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