Evaluating Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 5 is an algebraic expression.

Front

Write an algebraic expression for '8 less than a number'.

Back

x - 8

Front

Evaluate the expression: 4h + 2g + 4, if g = 3 and h = 9.

Back

46

Front

What is the product of seven and j in algebraic form?

Back

7j

Front

Identify the variable in the expression: 3x + 9.

Back

x

Front

Evaluate 4w - 3y if w = 7 and y = 6.

Back

10

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 a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

Front

Write an algebraic expression for 'the sum of a number and 5'.

Back

x + 5

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.