Converting binary numbers to denary
This is just the reverse of denary to binary, but a little easier because you are simply aadding numbers together
Step 1 - Write down your binary number
Write down your binary number in a grid, on the bottom row.
Step 2 - Write the powers of 2 numbers above, starting from 1 on the right.
Step 3 - Add up all the numbers that have a 1 below them
Convert the number 11 to decimal.
Convert the number 10111 to decimal.
The binary number 1010 is equivalent to the decimal number
.
The number 11101 in denary is
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