Question: 4___4___4___4 = 20 Use +, -, /, * To Solve It. It’s A Challenge.
\((4/4 +4)*4\)
where is ( - ) sign ?
You can't use all 4 signs. There's only room for 3.
no King George I bet one of the fours are a negative
which leaves the other 3
Well, it means there is no answer for this ?
If we're going that route, \[\left(\frac{-4}{-4}+4\right)*4\]
VICTORY! :D
Alternatively, \[(-4/4-4)*(-4)\]
wouldn't that be -12?
\[-4/4=-1\]\[-1-4=-5\]\[-5*-4=20\]
oh! I did the second part backwad, my bad
*backwards
yes, only changing signs of numbers we can solve it. Otherwise it is not possible, right?
In my opinion, the puzzle isn't asking you to use all 4 symbols. Rather, use no symbols that aren't one of those.
\[\left(\frac{-4}{-4}+4\right)*4 \] thank you @KingGeorge .. This solution seems perfect.
You're welcome.
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