🔢 How to Read Binary Numbers
Computational Thinking
Digital Literacy
Now that you know computers use binary (0s and 1s), how do we read these numbers?
Let's break it down into simple steps and see how binary numbers work!
🧠 Each position has a value
In binary, every position (from right to left) has a value that doubles each time:
- 1 → 1
- 2 → 2
- 3 → 4
- 4 → 8
- 5 → 16
- and so on!
💡 Tip: Always start reading binary numbers from the right side!
🔍 Example: Reading 1011
Let's read the binary number 1011:
- Rightmost 1 → 1 (means 1)
- Next 1 → 2 (means 2)
- Next 0 → 4 (means 0, so skip)
- Next 1 → 8 (means 8)
Add them: 8 + 2 + 1 = 11!
📊 Why Binary?
Binary is simple for computers because it only uses two states: ON (1) or OFF (0).
⚡ Fun fact: Modern computers process billions of binary instructions every second!
🎯 Quiz
To complete this lesson, you must get at least 80% correct. Good luck!
🧠 What should you remember?
- 🔢 Each binary position doubles in value
- ➡️ Read binary from right to left
- ➕ Add the numbers where there's a 1
- 💻 Binary helps computers process information simply and fast