# Math Vocabulary

• Number line – A straight line where every point on the line represents a number.
• Absolute value – the distance from zero to any number
• Natural numbers – These numbers are all positive and start with the number 1 and go up from there. There is no end to how big the number is
• Whole numbers – This is all the counting numbers and also the number 0. So start at 0 and count up from there. Again there is no end to how big a number can get.   It goes to infinity.
• Integers – Are whole numbers that also include all the negative whole numbers. So they are as small as -infinity and as big as infinity.Integers do not include fractions or decimals.
• Real numbers – All rational and irrational numbers. Real numbers are any point on the number line, so if you can plot it, it is a real number.
• Additive Inverse– the opposite of a number.
• Exponent-The number of times a base is used as a factor of repeated multiplication.
• Irrational-A real number whose decimal form is non-terminating and non-repeating that cannot be written as the ratio of two integers.
• Radical-A symbol that is used to indicate square roots.
• Rational– A number that can be written as the ratio of two integers with a nonzero denominator.
• Scientific Notation-A representation of real numbers as the product of a number between 1 and 10 and a power of 10, used primarily for very large or very small numbers.
• Square Root– One of two equal factors of a nonnegative number.

From Georgia Virtual Learning