Bunuel wrote:
12 Days of Christmas GMAT Competition with Lots ofFun
What is the last digit in the expanded value of\( 2^{394} –6^{88}\)?
A.2
B.4
C.6
D.8
E.0

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To figure out the units digit of this expression all we need to do is subtract the units digit of each separate expression.
We know the 6 raised to any number will have a units digit of 6. So we just need to figure out the units digit of\(2^{394}\)
Possible units digit of[m]
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