Lessons 13-16 Flashcards
What is the GCF?
Greatest common factor, the biggest number that is a factor of both numbers.
What is it called when two numbers have the GCF of one?
They are relatively prime.
What do you do when you have to find the GCF of big numbers?
Write out the prime factors for each and find the matching ones, multiply them, and that’s your answer.
What is the denominator-numerator rule for fractions?
The denominator and numerator of a fraction can be multiplied or divided by the same number (except zero) without changing the value of the fraction.
What is the opposite of a reduced fraction?
An expanded fraction.
How do you write a fraction as a decimal number?
By dividing the numerator by the denominator.
When a number’s decimal region doesn’t go on forever, what is it called when it stops?
It terminates.
What are the repeating digits of decimal number called?
The repetend, the actual number in whole is called the repeated.
What is the bar over the repetend called?
A vinculum (plural vincula.)
What is the thing where you use exponents called?
Exponential notation.
What’s another word for an exponent?
A power.
In a number with an exponent, what is the “not exponent” part of it called?
The base.
