Math Olympiad Vocabulary Flashcards
What is a sum?
The answer to an addition problem.
What is a difference?
The answer to a subtraction problem.
What is a product?
The answer to a multiplication problem.
What is a quotient?
The answer to a division problem.
What does compute mean?
To solve using addition, subtraction, multiplication, or division. (These operations can be combined in various mathematical equations.)
What does evaluate mean?
To solve the problem; to determine or calculate the numerical value in math.
What does “find the value of” mean?
To solve or find the result of a calculation or computation.
What is a unit fraction?
A common fraction in which the numerator is 1 and the denominator is any counting number. Example: 1/4
What is a proper fraction?
A common fraction in which the numerator is less than the denominator. Example: 3/4
What is an improper fraction?
A common fraction in which the numerator is greater than or equal to the denominator. Example: 4/3 or 6/6
What are consecutive numbers?
All natural numbers that are one right after another. Example: (2, 3, 4, 5,…)
What are adjacent numbers?
Numbers that are next to or beside each other. Example: 3 & 4
What is standard form?
The way we write numbers using digits. Example: 354
What is expanded form?
The way to write numbers using their sum associated with standard form. Example: 300+50+4
What is a ratio?
The relationship between two sets of numbers. Example: 2:1 or in our class there are 2 boys to 1 girl.
What are whole numbers?
The set of positive numbers that begin with 0. Example: 0, 1, 2, 3,…
What are natural/counting numbers?
The set of positive numbers that begin with 1. Example: 1, 2, 3,…
What are prime numbers?
Any number greater than 1 which only has 3 factores, 1 and itself. Example: 2, 3, 5, 7, 11, 13, 17,…
What are composite numbers?
Any number greater than 1 which has more than 2 factors 2, 4, 6, 8, 9, 10, 12,…
What does divisibility mean?
When a number can divide into another number without a remainder than it has divisibility. Example: 6 divided by 3 = 2 so it’s DIVISIBLE; 6 divided by 5 = 1.5 so it’s NOT DIVISIBLE
What is the square of a number
Any number multiplied by itself will give you the square of that number. Example: 4x4 = 16; 4, 9, 16, 25, 36, 49, 64, 91
What is a factor?
A number that will divide into another number without a remainder. Example: 3 and 5 are FACTORS of 15
What is a multiple?
A number that can be divided by another number without a remainder. Example: 5, 10, 15, and 20 are MULTIPLES of 5
What is area?
The number of square units contained in the interior of a region; it is found by multiplying length times width. Formula: A=L x W
What is perimeter?
The number of unit lengths in the boundary of a region; it is found by adding all the lengths of each side of a figure. Formula: L +L + W + W or 2(XL + XW)
What are congruent figures?
Two or more shapes whose sides and angles have the same measurement.
What are angles?
A flat geometric figure formed by a pair of rays that begin at a common point (vertex); it is always measured in by the degrees symbol.
What is an acute angle?
Any angle that measures less than 90 degrees.
What is an obtuse angle?
Any angle that measures more than 90 degrees.
What is a right angle?
Any angle that measures exactly 90 degrees.
What are quadrilaterals?
Any geometric figure that is closed and has four sides.
What is a rectangle?
A quadrilateral that has four equal angles and its adjacent sides are unequal. All parallel lines are equal.
What is a square?
A quadrilateral that has four equal sides and angles.(Also, a square is a rectangle with equal sides.)
