09/23/24

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a non-prime number?

Back

A non-prime number is a natural number greater than 1 that is not prime, meaning it has divisors other than 1 and itself.

Front

How many prime numbers are there between 1 and 20?

Back

There are 8 prime numbers between 1 and 20: 2, 3, 5, 7, 11, 13, 17, 19.

Front

How many non-prime numbers are there between 1 and 20?

Back

There are 12 non-prime numbers between 1 and 20: 1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20.

Front

What is the formula for calculating the number of outcomes when flipping coins?

Back

The number of outcomes when flipping n coins is given by 2^n.

Front

If you flip 2 coins, how many possible outcomes are there?

Back

There are 4 possible outcomes: HH, HT, TH, TT.

Front

Back

The value is 249.

Front

Back

The value is 1.

Front

What is the definition of a mathematical expression?

Back

A mathematical expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not include an equality sign.