6th Writing and Evaluating Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the product of two numbers?

Back

The product is the result of multiplying two numbers together.

Front

How do you represent the total cost of downloading 'g' games if each game costs $1 and there is a $13 membership fee?

Back

The expression is 1g + 13.

Front

What is the expression for the total number of comic books Mr. O'Neal will have after 'm' months if he starts with 165 comic books and acquires 8 new comics each month?

Back

The expression is 165 + 8m.

Front

If x = 8, what is the value of the expression 7(6 + 3 - x)?

Back

The value is 7.

Front

What does the term 'variable' mean in mathematics?

Back

A variable is a symbol (usually a letter) that represents an unknown value.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation states that two expressions are equal.

Front

How do you simplify the expression 2N ÷ 8?

Back

You can simplify it by dividing 2N by 8, which gives N/4.

Front

What is the meaning of the term 'evaluate' in the context of expressions?

Back

To evaluate means to find the numerical value of an expression by substituting the variables with specific numbers.