Equivalent Expressions from Situations

Front

What is an equivalent expression?

Back

An equivalent expression is a mathematical expression that has the same value as another expression, even though it may look different.

Front

How do you simplify an expression?

Back

To simplify an expression, combine like terms and perform any operations to reduce it to its simplest form.

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated using the formula P = 2(length + width).

Front

What does the term 'area' refer to in geometry?

Back

Area refers to the amount of space inside a two-dimensional shape, measured in square units.

Front

How do you find the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width (A = length × width).

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents a number in mathematical expressions or equations.

Front

What does 'combining like terms' mean?

Back

Combining like terms means to add or subtract terms that have the same variable raised to the same power.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a factor across a sum.

Front

How do you evaluate an expression?

Back

To evaluate an expression, substitute the values of the variables into the expression and perform the operations.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression.