Very often, math problems include possible answers that, if you just give yourself a minute to think about them, couldn’t POSSIBLY be right.
Example: If I have 18 eggs and give 9 to Julie, how many eggs do I have left?
a)3
b)9
c)-2
d)4
e)1
Notice the crazy answer? C (a negative number) couldn’t possibly be right if you’re talking about real-world eggs—how do you get a “negative egg”??? So before you start to answer (or when you’re looking to eliminate answers as you prepare to guess), make sure you “sanity check” your candidates. Even do a quick estimation of the answer so you get a “Ball-park” figure to aim at. That way if your answer comes up way off you know you goofed something up.
A picture, drawn roughly to scale, very often will likewise alert you to any “insane answers” in geometry problems. Don’t forget to draw yourself a good picture!
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