Riddle #27 (Five upvotes to the first correct answer posted in comments.)

4?

This one is a little different. Think opposite numbers multiplied.

it is 6 or 4
only 2 numbers that can be added or multiplied to get the remaining numbers

The answer is a double digit number.

24

My bad! The answer to riddle #26 is 36. (opposite numbers multiplied). The answer to this one IS 4. (Opposite numbers add up to 18). I owe you a shit ton of upvotes and a follow. Can you forgive me?

np, and i dont need the upvotes, i just like simple math puzzles.
its a hellava lot more fun then trying to find x in a math problem that spans a entire page

Cool. I will keep posting them. So far, you are the first one who likes the number puzzles, which I really admire. 😀 See you soon. I hope you have a great day!

ditto :)

I mean four.. :)