BCD to Decimal Conversion  Summary and Q&A
TL;DR
Learn how to convert a binary coded decimal into a decimal number by splitting it into groups of four, assigning values to each group, and adding them up.
Questions & Answers
Q: How do you convert a binary coded decimal into a decimal number?
To convert a BCD into a decimal number, split it into groups of four. Assign values to each group based on the positions of the nonzero bits (8, 4, 2, 1). Add up the values for each group to get the decimal number.
Q: What does each group of four binary numbers in BCD represent?
Each group of four binary numbers in BCD represents a digit in a decimal number. The positions of the bits within the group correspond to the values 8, 4, 2, and 1 respectively.
Q: Are leading zeros significant in a BCD number?
Leading zeros in a BCD number are not significant. They can be omitted when converting the BCD to a decimal number as they do not contribute to the overall value.
Q: Can BCD numbers be converted directly into binary?
BCD numbers can be converted into binary by converting each BCD digit into a 4bit binary number and combining them. However, the resulting binary number may not necessarily be in the most compact binary representation.
Summary & Key Takeaways

Binary coded decimal (BCD) values are broken down into 4bit numbers, with each group representing a digit in a decimal number.

To convert a BCD number to decimal, split it into groups of four, assign values to each group, and add them up.

Practice examples: BCD 010110010110 corresponds to 596, BCD 011110000001 corresponds to 781, and BCD 001000000000 corresponds to 2,340.