Unit 2: The Structure of Numbers

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Solve this expression using the order of operations: 6 + (5 • 6) ÷ 2

Back

21

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

Is 33 a prime or composite number?

Back

Composite

Front

What are all prime numbers divisible by?

Back

1 and itself

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors.

Front

How many different combinations can be made with 3 sizes of popcorn, 3 types of soda, and 2 types of candy?

Back

18

Front

Find the prime number: 10, 7, 9, 4

Back

7

Front

What is the formula to find the total number of combinations?

Back

Total combinations = (number of choices for item 1) x (number of choices for item 2) x (number of choices for item 3).

Front

What is the smallest prime number?

Back

2