The distance of a number from zero; the positive value of a number.
A positive angle measuring less than 90 degrees.
A triangle each of whose angles measures less than 90 degrees.
In the example... 3 + 4 = 7 The 3 and the 4 are called addends.
The number zero is called the additive identity because the sum of zero and any number is that number.
The additive inverse of any number x is the number that gives zero when added to x. The additive inverse of 5 is -5.
Two angles that share both a side and a vertex.
The word "algebra" is a distortion of the Arabic title of a treatise by al-Khwārizmī about algebraic methods.
An algorithm is a specific set of instructions for carrying out a procedure or solving a problem.
The union of two rays with a common endpoint, called the vertex.
A portion of the circumference of a circle.
The number of square units that covers a shape or figure.
Arithmetic is the branch of mathematics dealing with numerical computation.
associative property of addition
(a + b) + c = a + (b + c)
associative property of multiplication
(a x b) x c = a x (b x c)
A number that represents the characteristics of a data set.
An axiom is a rule in math that is always true. In fact, it is SO obviously true that you don't have to prove it's true.
An axis is a line with respect to which a curve or figure is drawn, measured, rotated, etc. The most common axes are Cartesian axes.
axis of symmetry
A line that passes through a figure in such a way that the part of the figure on one side of the line is a mirror reflection of the part on the other side of the line.