Can you use the numbers 1 - 9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them? I'm not sure how my teacher wants this to be done

Answer 1

Here is one example on how to do that:
***Note: You can use any math symbol and operation, this also includes squaring or cubing numbers. Therefore:
8^2 + -6 * -6
We do the exponential first: 8^2 = 64
Then the multiplication: -6 * -6 = 36
Add the two results together: 64 + 36 = 100
(Remember that the order of operation is PEMDAS!!! Therefore giving the reason why I did this problem in the specific order that I did.)

Answer 2

thanks EGGMAN