Multi-digit Mult & Division

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. It has exactly two distinct positive divisors: 1 and itself.

Front

Which of the following is NOT a prime number: 2, 3, 7, 9?

Back

9 is NOT a prime number because it can be divided by 1, 3, and 9.

Front

What is the product of 19 and 4?

Back

The product of 19 and 4 is 76.

Front

Back

Front

What is the product of 33 and 3?

Back

The product of 33 and 3 is 99.

Front

Back

Front

What does it mean to multiply?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 4 x 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What is the definition of division?

Back

Front

What is the relationship between multiplication and division?

Back

Front

How do you check if a number is prime?

Back

To check if a number is prime, see if it has any divisors other than 1 and itself. If it can be divided evenly by any other number, it is not prime.