Given 13.27
In a base-10/decimal number, each place represents a power of 10.
Thus, each place of the given number, the tens place, ones place, tenths place, and hundredths place, represents 10^1, 10^0, 10^-1, and 10^-2 respectively.
Therfore, the expanded form in decimal system is: 13.27=1x10^1 + 3x10^0 + 2x10^-1 + 7x10^-2