rational learning vocab Flashcards
what are unit fractions?
a fraction with a numerator of 1
1/2,1/8, and 1/12 are unit fractions
what is multiplicative inverse
reciprocal;when you multiply a number by its multiplicative inverse the product is 1
9 x 1/9=1
the fraction 1/9 is the multiplicative inverse of 9
what is reciprocal
the multiplicative inverse of a number;with fractions,the numerator and denominator are switched
5/8 x 8/5=1
8/5 is the reciprocal of 5/8
what are partial quotient’s
a strategy used to divide multi-digit numbers;the quotient’s you get in each step are called partial quotient’s
what are factors
a number you multiply.
2 x 4=8
2 is a factor of 8
4 is a factor of 8
what is a factor pair
two numbers that are multiplied together to give a product.
2 x 4=8
2 and 4 are a factor pair
what is prime factorization
a way to write a composite number as a product of prime numbers.
the prime factorization of 12 is 2 x 2 x 3
what are greatest common factors(gcf)
the greatest 2 numbers have in common
what is multiple
the product of a number and any whole number.
8 is a multiple of 2
8 is a multiple of 4
what is a least common multiple(LCM)
the lowest multiple shared by two or more numbers.
whats a coordinate plane
a 2 dimensional space formed by 2 perpendicular number lines called axes
what are quadrants
the four spaces of the coordinate plane that are created when x-axis and y-axis intersect at the origin
what is the origin?
the point(0,0) where the x-axis and y-axis interact
what is a ordered pair
a pair of numbers (x,y)that describe the location of a point on the coordinate plane
what are opposites
two numbers are opposites if they are the same distance from 0 on the number line but on opposite sides of 0.
2 i a positive number.
-2 is a negative number.
2 and -2 are opposites.
