There's a problem on my math homework that I really don't get. I couldn't find it anywhere else on the internet, so I came here. I have to use the numbers 1, 2 ,3, 4, 5, 6, 7, 8, and 9 and I can multiply, divide, add, and subtract, but I can't use parenthesis to make an expression that will equal 100. I played around for a while and didn't get anything. Plus, I can't use the expression 123-4-5-6-7+8-9=100, because that's the example they gave in the book. So, could someone help me out here? Thanks.