Whois & Analysis for dadsworksheets.com

In mathematics and computer programming, the order of operations (or operator precedence) is a collection of rules that reflect conventions about which procedures to perform first in order to evaluate a given mathematical expression.

The numeric system represented by Roman numerals originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages.

Numbers in this system are represented by combinations of letters from the Latin alphabet.

Roman numerals, as used today, are based on seven symbols:

Subtraction is a mathematical operation that represents the operation of removing objects from a collection.

It is signified by the minus sign (−).

For example, in the picture on the right, there are 5 − 2 apples—meaning 5 apples with 2 taken away, which is a total of 3 apples.

Therefore, 5 − 2 = 3.

Subtraction represents removing or decreasing physical and abstract quantities using different kinds of objects including negative numbers, fractions, irrational numbers, vectors, decimals, functions, and matrices.

Multiplication (often denoted by the cross symbol "×", by a point "·", by juxtaposition, or, on computers, by an asterisk "∗") is one of the four elementary, mathematical operations of arithmetic; with the others being addition, subtraction and division.

A fraction (from Latin ', "broken") represents a part of a whole or, more generally, any number of equal parts.

When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.

A common, vulgar, or simple fraction (examples: and 17/3) consists of an integer numerator displayed above a line (or before a slash), and a non-zero integer denominator, displayed below (or after) that line.