KwickClips Course Topics · 45 sec · free
In which order do you read the remainders?
Short answer. From bottom to top.
How many bits make one hexadecimal digit?
Four.
Divide by 2
| Step | Quotient | Remainder |
|---|---|---|
| 25 ÷ 2 | 12 | 1 |
| 12 ÷ 2 | 6 | 0 |
| 6 ÷ 2 | 3 | 0 |
| 3 ÷ 2, 1 ÷ 2 | 1, 0 | 1, 1 |
Remember
| Divide by the base |
| Read remainders bottom-up |
| Group 3 bits: octal; 4: hex |
Twenty five in binary, fast? Watch the remainders. Divide by two each time. Twenty five leaves one. Twelve and six leave zeros. Three and one leave ones. So it is one one zero zero one. Divide by the base. Read bottom up. Group bits.
This clip is from the full lesson: Conversion of number representations — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ISC Class 12 Computer Science (868)
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