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Will voltage increase or decrease when a circuit rusts out?

I call this “reverse PEMDAS,” because you +/–, then ×/÷, then exponent, then ().

If you don’t know what you’re doing, this math item will drive you crazy. But if you do, they’re easy!

There are more of this math item than any other on the Entrance Exam. So study up!

You can learn enough by the end of this week to get all of these math items correct.

Here’s the breakdown of what’s on the test, and this website.