Order of operations tells you to perform multiplication and division first, working from left to right, before doing addition and subtraction. Continue to perform multiplication and division from left to right. Next, add and subtract from left to right.

Scientists use the terms amplitude, wavelength, and frequency to refer to some commonly measured properties of waves. What are three properties of a wave that can be measured? Use combination notes in your notebook to describe how waves can be measured. A is the highest point, or peak, of a wave.

A formula is an expression telling the computer what mathematical operation to perform upon a specific value. In the picture below is an example of a Microsoft Excel formula =SUM(A$1:A$3), which adds the total of cells A1, A2, and A3. In this formula, SUM is the function of the formula.

The Rules:

It is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the number of values on the list. To find the mean, add up all the values in the set. Then divide the sum by how many values there are.

ADDITION/ SUBTRACTION: ):( Positive number plus a positive number, add the two numbers, and it equals a positive number. (+) Positive. Plus+ Good Guy.

Each number has an “additive inverse” associated to it (a sort of “opposite” number), which when added to the original number gives zero. This is in fact the reason why the negative numbers were introduced: so that each positive number would have an additive inverse.

Addition and Subtraction Two ‘pluses’ make a plus, two ‘minuses’ make a plus. A plus and a minus make a minus.

For example, -7+4 = -3 but in the case of multiplication of integers, two signs are multiplied together….Multiplication of Integers.

When you have two negative signs, one turns over, and they add together to make a positive. If you have a positive and a negative, there is one dash left over, and the answer is negative.

Minus represents the arithmetic operation of subtraction between two numbers. For example, Minus sign also means taking something away from a given value.

The plus–minus sign (also, plus or minus sign), ±, is a mathematical symbol with multiple meanings. In mathematics, it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction. In chemistry, the sign is used to indicate a racemic mixture.

By “taking the square root” of either side and placing a “±” in front of the numerical value, we save ourselved the trouble of solving the absolute-value equation that was (technically) created by taking the square root.

Robert Recorde

Use the word minus to mean “less” or “with the subtraction of.” When it’s minus fifteen degrees outside, it’s fifteen below zero — or fifteen degrees less than zero. Whenever you talk about negative numbers, whether they relate to temperature or your bank account, the adjective minus always applies.

hyphen-minus

Correct spelling for the English word “minus” is [mˈa͡ɪnəs], [mˈa‍ɪnəs], [m_ˈaɪ_n_ə_s] (IPA phonetic alphabet).