| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
| 1 | 1 | 1 | 0 | 0 | 1 |
What is the decimal value of row 3?
The answer is 57 (32 + 16 + 8 + 1). You add the value of row 3 columns 6 thru 1 together.
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
| 1 | 1 | 0 | 0 | 1 | 0 | 1 |
What is the decimal value of row 3?
The answer is 101 (64 + 32 + 4 + 1). Adding columns 7 – 1 together.
| 1024 | 512 | 256 | 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 |