ACT MATH

Front

What is the greatest common factor (GCF)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

How do you find the GCF of 42, 126, and 210?

Back

List the factors of each number: - Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42 - Factors of 126: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126 - Factors of 210: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210 The GCF is 42.

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is the probability of drawing a red card from a standard deck of 52 playing cards?

Back

Front

What is the least common multiple (LCM)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of all of them.

Front

How do you find the LCM of 8, 12, and 20?

Back

List the multiples of each number: - Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, ... - Multiples of 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, ... - Multiples of 20: 20, 40, 60, 80, 100, 120, ... The LCM is 120.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction, meaning it cannot be written as a ratio of two integers.

Front

How many irrational numbers are there between 1 and 6?

Back

There are infinitely many irrational numbers between any two distinct real numbers.

Front

What is the formula for the area of a triangle?

Back

Front

What is the Pythagorean theorem?

Back