Writing & Evaluating Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

How do you represent 'a number decreased by 5' in algebraic terms?

Back

You can represent it as 'x - 5', where x is the number.

Front

What does the variable 'b' represent in the expression 'b - 17'?

Back

In this expression, 'b' represents the number of baseball cards Pete has.

Front

If 'c' represents the number of cookies Mary made on Saturday, how would you express the number of cookies she made on Sunday?

Back

You would express it as '2c', since she made twice as many cookies on Sunday.

Front

What is the expression for '300 plus x'?

Back

The expression is '300 + x', where x represents the additional canned goods brought in.

Front

How do you evaluate the expression '4a' when 'a' equals 5?

Back

You substitute 5 for 'a' to get '4 * 5', which equals 20.

Front

Translate the phrase '4 more than three times the amount of c candy bars' into an algebraic expression.

Back

The algebraic expression is '3c + 4'.

Front

What is the difference between an expression and an equation?

Back

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

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

Front

How can you express 'x increased by 10' in algebraic terms?

Back

You can express it as 'x + 10'.