How do I write the base-b numeral represented by a set of base-b blocks?
The correct answer and explanation is:
To write the base-b** numeral represented by a set of base-b blocks**, follow these steps:
✅ Correct Answer:
Add the values of each type of block (based on their place value in base-b) and write the total as a numeral in base-b.
🧠Explanation (Around 300 Words):
In any base-b number system, place value is crucial. Just like in base-10 we have ones, tens, hundreds, etc., in base-b, the values are based on powers of b:
- The rightmost block type represents b^0 = 1 (ones),
- The next represents b^1 = b (b-units),
- Then b^2 = b², and so on.
🧮 Example:
Suppose you are working in base-5 and you are given the following blocks:
- 3 blocks of 25 (which is 525^2),
- 2 blocks of 5 (which is 515^1),
- 4 blocks of 1 (which is 505^0).
To write this in base-5:
- You place the number of blocks at each power of 5:
- 3×25=3×523 \times 25 = 3 \times 5^2
- 2×5=2×512 \times 5 = 2 \times 5^1
- 4×1=4×504 \times 1 = 4 \times 5^0
Write the digits from left to right, starting from the highest power:
→ 3 2 4 (in base-5)
This is the numeral 324â‚…, meaning: 3â‹…52+2â‹…51+4â‹…50=75+10+4=89 (in base-10)3 \cdot 5^2 + 2 \cdot 5^1 + 4 \cdot 5^0 = 75 + 10 + 4 = 89 \text{ (in base-10)}
🎯 Summary:
To write the base-b numeral:
- Identify how many blocks are at each place value (power of b).
- Arrange the digits from highest to lowest place.
- Combine the digits to form the numeral in base-b.
This method visually represents the number based on positional value, making it easier to understand non-decimal bases.