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Tax.
Commission.
Mark-up. Add a certain amount to the cost of goods to cover overhead and profit.
Calculating tip.
Example Say you and a friend had dinner and the check came to $26.50. You had good service and want to leave an 18% gratuity. Put the percentage in decimal form as 0.18 then multiply the check amount by this number. 26.50 * 0.18 = 4.77.
Mark-down. A mark down is an amount by which you decrease the selling price
Simple interest. Simple interest calculated on the principal portion of a loan or the original contribution to a savings account.
Geometry.
Perimeter. Perimeter is the distance around the edge of a shape.
Surface area. Surface area is the amount of space covering the outside of a three-dimensional shape. :
Geometry facts. Geometry is a branch of mathematics that studies the sizes, shapes, positions angles, and dimensions of things.
Area.
Rational A rational number is any number that can be written as the ratio of two integers
Integers. A whole number a number that is not a fraction
Adding.
Multiplying. The act or process of multiplying
Subtraction The process or skill of taking one number or amount away from another.
Subtraction.
Multiply.
Add. To bring two or more numbers (or things) together to make a new total.
Divide.
Absolute Value. The magnitude of a real number without regard to its sign.
Expressions, Equations& inequalities. An expression is a mathematical phrase that contains numbers, variables, or both. Expressions never have an equal sign.
Equations
Inequalities
Expressions An expression is a set of terms combined using the operations +, – , x or , for example 4 x − 3 or x 2 – x y + 17 .
Statistics and probabilities
Probability. Probability is the chance that something will happen, or how likely it is that an event will occur. When we toss a coin in the air, we use the word probability to refer to how likely it is that the coin will land with the heads side up.
Example. weather forecasting
Statistics The practice or science of collecting and analyzing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample.
Measures of central. A measure of central tendency is a summary measure that attempts to describe a whole set of data with a single value that represents the middle or centre of its distribution.
Median. The median is the middle value in a list ordered from smallest to largest.
Mode. The mode is the value that occurs most often.
Mean. In mathematics, a quantity that has a value intermediate between those of the extreme members of some set.
Common methods to represent statics. Tables, charts and graphs are all ways of representing data, and they can be used for two broad purposes.
Scatter plots.
Ratios. A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0
Proportions