Brain Game: Math Monday

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Welcome to Math Monday. (No, it's not a regular feature; I just felt numerical today.) I should know better than to give you an open-ended puzzle to begin the week... You'll never get any work done. Ah, well.

Many numbers can be represented by using the same digit three times in an equation. For instance, the number 4 can be shown as:

(3 / 3) + 3 = 4
4 + 4 - 4 = 4
5 - (5 / 5)
= 4
√9 + (9 / 9) = 4

The solution to each of those equations is 4. With that example in mind...

How many different ways can you
represent the number 24 in an equation
by repeating the same digit THREE times
(as shown in the example above)?

I found THREE ways. Can you find those? Or others?

Here are my ANSWERS.

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February 9, 2009 - 2:30am
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