Rational Numbers Flashcards
What is a unit fraction?
A fraction with a numerator of 1. 1/3, 1/8 and 1/12 are unit fractions.
What is a multiple?
The product of a number and any whole number. 2x4=8, 8 is a multiple of 2, 8 is a multiple of 4.
What is a coordinate plane?
A two-dimensional space formed by two perpendicular number lines called axes.
What are quadrants?
The four spaces of the coordinate plane that are created when the x-axis and y-axis intersect at the origin.
What is a factor pair?
Two numbers that are multiplied together to give a product, 2x4=8 2 and 4 are a factor pair.
What is a prime factorization?
A way to write a composite number as a product of prime numbers. The prime factorization of 12 is 2x2x3.
What is a positive number?
A number greater than 0.
What is a negative number?
a number less than 0.
What is a x-coordinate?
A point’s horizontal distance from the origin along the x-axis.
What is a y-coordinate?
A point’s vertical distance from the origin along the y-axis.
What are integers?
The set of whole numbers and their opposites.
What is a origin?
The point (0,0) where the x-axis and y-axis intersect.
What is an absolute value?
A number’s distance from 0 on the number line.
What is and additive inverses?
Two numbers whose sum is 0.
What are opposites?
Two numbers are opposite if they are the same distance from 0 on the number line but on opposite sides of 0. 2 is a positive number, -2 is a negative number, 2 and -2 are opposites.
What are integers?
The set of whole numbers and their opposites.
What is a greatest common factor? (GCF)
The greatest factor two numbers have in common.
What is a least common multiple?(LCM)
The lowest multiple shared by two or more numbers.
What is a multiplicative inverse?
Reciprocal;when you multiply a number by its multiplicative inverse the product is 1. 9x1/9=1. The fraction 1/9 is the multiplicative inverse of 9.
What is a reciprocal?
The multiplicative inverse of a number; with fractions, the numerator and denominator are switched.. 5/8x8/5=1. 8/5 is the reciprocal of 5/8.
What is a partial quotient?
A strategy used to divide multi-digit numbers; the quotients you get in each step are called “partial quotients”.
What are factors?
A number you multiply. 2x4=8. 2 is a factor of 8. 4 is a factor of 8.
