Math Flashcard

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

Which of the following is not a prime number? 2, 3, 4, 5

Back

4 is not a prime number.

Front

Solve: 2 (3) + 4 (2) = ?

Back

14

Front

What are prime factors?

Back

Prime factors are the prime numbers that multiply together to give a certain original number.

Front

Which of the following are prime factors of 50? 10 * 5, 2 * 5 * 5, 25 * 2, 10 * 3 * 2

Back

2 * 5 * 5 are the prime factors of 50.

Front

What is the Greatest Common Factor (GCF)?

Back

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

Front

The Greatest Common Factor of 6 and 12 is?

Back

6

Front

Solve: 2 (5 - 5)

Back

0

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

If the length of a rectangle is 5 and the width is 3, what is the area?

Back

15 (Area = 5 × 3).