WHAT HAPPENS WHEN FROGS PARK ILLEGALLY?

They get TOAD!!! HAHAHAHA!!!     Several students gave me the correct answer to that one. Now, here's a much harder riddle...

Can you make this equation correct by adding plus (+) signs and minus (-) signs between some of the numbers? There are actually several different answers. Good luck!! You will need to write down your answer and give it to me at school. :-)

123456789 = 100