Systems & Magnitude Flashcards
Unit fraction
A fraction composed of one over any rational number. the inverse of a whole number
Least common multiple (LCM)
The smallest number that is a multiple of two or more numbers; the smallest number two or more numbers will divide into evenly
Decimals fractions
Fractions with the denominator of 10
Integers
The infinite set of positive and negative counting numbers and zero
Closure property
The sum of two real numbers is a real number. 
The product of two real numbers is a real number
Proportion
A statement that to ratios are equivalent
Reducing fractions
Dividing the numerator and denominator by any common factors to put the fraction in lowest terms
Relatively prime
Two numbers are relatively prime if they share no common factors
Prime factor
A prime number or term that can be multiplied by another to get a number
Absolute value
The distance a number is from zero; always a positive number
Multiplicative Identity Property
A number that, when multiplied by X, yield X. These are one or forms of one such as X/X
Bass 10 number system
Our number system. Each place location for a number has a value that is a power of 10
Irrational numbers
Real numbers that cannot be represented exactly. They cannot be shown as a ratio of two integers nor placed on a number line
Real Numbers
Numbers that have a specific value
Rational numbers, integers, whole numbers, natural numbers, irrational numbers
Complex numbers
A polynomial comprised of a real number and an imaginary number. The real number can be zero and not written
Fractions
Usually represent partial numbers
Whole numbers
The infinite set of natural numbers and zero
Factor tree
A visual process to find the factors of a number
Distributive property
And number in front of a group of terms will multiply all terms in the grouping individually
Greatest common factor GCF / greatest common divisor GCD
The greatest factor that is common to two or more numbers; the largest number that will divide evenly into two or more numbers
Additive Identity property
A number that, when added to any element X in a set, always yields x. Zero itself is sometimes referred to as the additive Identity
Prime factorization
The process of writing a number in terms of its prime factors
Commutative property
An operation is commutative if changing the order of terms does not change the outcome
Percentages
A way to represent part to whole relationships, where the percent is the part out of 100.
Natural numbers
The set of counting numbers starting at one and increasing by one up to infinity sometimes called “counting numbers”
Composite numbers
Natural numbers that have numbers that divide into them
Benchmark fraction
And easily remembered Fraction that can be used to make problems simpler
Decimal
Numbers less than one displayed using place values and the powers of 10
Factors
Values that are multiplied to get another number
Imaginary numbers
Numbers represented by the i, which indicate the square root of a negative number
Rounding
A number is simplified to its closest multiple of 10, 100, 1000, etc.
Zero product property
When a real number is multiplied by zero, the result is zero.
Prime numbers
Natural numbers greater than one that have no numbers that will divide into them without a remainder
Denominator
The bottom term of a fraction
Scientific notation
Numbers expressed as the product of a base- 10 number and a number between one and 10
Exponents
Indicate repeated multiplication and are written above and after the number in question in the form: X^n where n represents the number of times multiplication is repeated
Radical sign
The symbol used to indicate a root
Common denominator
When 2 fractions share the same total parts of whatever item or items are being represented
Identity element
Any number +0 or any number multiplied by one is that number
Magnitude
The size of a number
Numerator
The top term of a fraction
Inverse element
Any number plus it’s opposite or any number multiplied by its inverse is one
Ratio
A comparison that shows the relative size of two or more values
Estimating
Rounding numbers or approximating them to quickly perform math operations
Associative property
And operation is associative if regrouping the terms does not change the outcome
