Translating & Evaluating Expressions

Front

Evaluate 2r + 1 if r = 3

Back

7

Front

Write an algebraic expression for 'thirty-five decreased by a number'.

Back

35 - n

Front

Write an algebraic expression for 'a number subtracted from eight'.

Back

8 - n

Front

Evaluate 2a - b if a = 6 and b = 1

Back

11

Front

Write an algebraic expression for '12 more than a number'.

Back

x + 12

Front

What is an algebraic expression?

Back

A mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting variables with numbers.

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents an unknown number.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation does.

Front

How do you translate 'twice a number' into an algebraic expression?

Back

2n