Seasoning Math

Between the following numbers: +, -, (,) to put in moderation so that the calculation results Let 100.
(However, the numbers and the numbers in between the +, -, (,) is not necessary to put.)

+, -, () As a cover to cook.

123-(4+5+6+7-8+9)=100

12-(3+4-5+6-7)+89=100