Expressions

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor in a term of an expression. For example, in the expression 4m, 4 is the coefficient.

Front

Evaluate the expression a² - b² when a = 4 and b = 2.

Back

12

Front

How do you write 4 * 4 * 4 * 4 * 4 * 4 * 4 * 4 in exponent form?

Back

4^8

Front

Evaluate the expression 2b + 3 when b = 7.

Back

17

Front

What are the variables in the expression 3x + 9?

Back

x

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What is a term in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both multiplied together.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their given values.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value that does not change.

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: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).