19 361
20 400
25 625
So if you see a problem involving the number 169, your “square-sense” should
be tingling!
MENTAL MATH TRICK 5: KNOW YOUR MATH TERMS
As we mentioned, one way that the Evil Testing Serpent likes to overwhelm the
mind and torture the soul is to stuff a problem full of math terms. You can save
yourself a good deal of stress by making yourself familiar with some of the most
commonly used terms.
Don’t worry, we are going to address a few of these words (like mean, factor,
numerator, and denominator) in more detail later on. But when you read a math
problem, these words should stand out in bold in your mind (or underlined, or
italicized, or all three) because each one must be considered when solving the
problem.