Review for Chapter 1 Test Numerical Expressions & Factors

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations (like addition, subtraction, multiplication, and division) but does not have an equal sign.

Front

What is the order of operations?

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

Back

5

Front

Calculate: 18 + (6 - 2) \times 2

Back

26

Front

Back

Division

Front

What is the prime factorization of 24?

Back

Front

What is an exponent?

Back

An exponent is a number that shows how many times a base is multiplied by itself.

Front

Back

8

Front

What is the difference between a prime number and a composite number?

Back

A prime number has exactly two distinct positive divisors: 1 and itself. A composite number has more than two positive divisors.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.