# Thread: Subtracting in base 6

1. ## Subtracting in base 6

Question) Evaluate: 522(base 6) - 244 (base 6)

answer = 234 , one mark for both method and answer, no marks given for converting to decimal and back.

2. Hello, scott_237!

If you copied the problem accurately,
. . there is no way they can get their answer!

Evaluate: .$\displaystyle 566_6 - 244_6$

Answer: .$\displaystyle 234_6$ .??
There is no "borrowing" required.
. . The answer comes out to: $\displaystyle 322_6$

. . $\displaystyle \begin{array}{cccc} & 5 & 6 & 6 \\ - & 2 & 4 & 4 \\ \hline & 3 & 2 & 2 \end{array}$

3. Originally Posted by scott_237
Question) Evaluate: 522(base 6) - 244 (base 6)
Scott, Did you try adding $\displaystyle 234_6 + 244_6$ to see how it might work?

4. yea thanks, i see how it works when i convert it to decimal then back, i.e. base 6 = ...36,6,1 as opposed to decimal = 1000,100,10,1 but the question requires it to be done with a certain method, you don't get marks for converting to decimal then doing the subtraction then converting to base 6 again.

Do any of you know a method like this?

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# subtraction in number bases 6

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