How to Evaluate Expressions by Substituting Values
Learn what it means to evaluate algebraic expressions, how to substitute values step by step, and what mistakes to avoid.
Math Word of the Day comes from the Math Dictionary written by Mathnasium.
Sunday, November 22
A fixed number (a constant) that relates quantities being multiplied and/or divided.
Examples:

Monday, November 23
A continuous series; a whole.

Tuesday, November 24
A set of one, two, or three numbers used to determine the position of a point in a 1-, 2-, or 3-D frame of reference.

Wednesday, November 25
A statistical measure that relates how well a set of data points can be modeled by a trend line.

Thursday, November 26
The trigonometric function that is defined as the ratio of the leg adjacent to an angle to the hypotenuse of a right angle.

Friday, November 27
An example of a conditional statement in which the hypothesis is true and the conclusion is false.

Saturday, November 28
Determining "how many total." The process of determining quantity (how many, how much). Arithmetic is the "art of counting."

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