The expression "1×2^2 + 0×2^1 + 1×2^0" represents a binary number in base-2 notation. Each term consists of a coefficient (0 or 1) multiplied by a power of 2. In this case, the first term is 1 times 2 raised to the power of 2, the second term is 0 times 2 raised to the power of 1, and the last term is 1 times 2 raised to the power of 0. Calculating each term gives us 4 (from 1×2^2), 0 (from 0×2^1), and 1 (from 1×2^0). Adding these values together results in 4 + 0 + 1, which equals 5. Therefore, the binary number "101" corresponds to the decimal number 5.