Evaluating Expressions and Vocabulary

Front

What is the numerical expression for '2 times the length plus 2 times the width'?

Back

2L + 2W

Front

What operation does the word 'sum' indicate?

Back

Addition

Front

In the expression '7p + 3', which part is the variable?

Back

p

Front

In the expression '7p + 3', which part is the constant?

Back

3

Front

What is a term in algebra?

Back

A combination of constants, variables, and variables with coefficients separated by plus signs, minus signs, and equal signs.

Front

What is a variable in an expression?

Back

A symbol that represents an unknown value, often denoted by letters such as x, y, or p.

Front

What is a constant in an expression?

Back

A fixed value that does not change, such as the number 3 in '7p + 3'.

Front

What does the term 'coefficient' refer to in an expression?

Back

A numerical factor that multiplies a variable, such as 7 in '7p'.

Front

How do you evaluate an expression?

Back

By substituting the values of the variables and performing the arithmetic operations.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations, while an equation states that two expressions are equal.