Math puzzle - What's your answer?

[EastTexFrank]

I enjoyed that puzzle. There was more to it than I originally thought.

 

[road squawker]

I think that you got it right except for one thing.

2 + 1 + (1 x7) = 10

Waybomb got it first!!!!

in my old school math, i add before multiplying

 

[Melensdad]

in my old school math, i add before multiplying

Then you did old school math incorrectly. For longer than I've been alive the rule has been multiplication before addition