CONVERT BINARY TO DECIMAL

(1111011)2=(?)10

First count right to left of the binary

number

(1111011)2

0123456

(1 1 1 1 0 1 1)2

0123456

Take the first number

1

1

Multiply by 2.

X 26

Write the power of the 2 with 1’s position

6

+ 1 X 2 + 1 X 2 + 1 X 2 + 0 X 2 + 1 X 2 + 1 X 25 4 3 2 1 0

Continue the above step until end.

Calculate the total.123

(1111011)2=(123)10

SO