Expressions Test Review

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 'the product of 7 and a number n' mean?

Back

It means to multiply 7 by the variable n, represented as 7n.

Front

How do you write an expression for 'You are y years old, and your sister is 6 years older'?

Back

The expression is y + 6.

Front

What is the expression for 'Your uncle is 3 times older than your sister'?

Back

The expression is 3(y + 6).

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the simplified form of 6 + 4(2m + 8)?

Back

The simplified form is 8m + 38.

Front

What are constants in an expression?

Back

Constants are fixed values that do not change, such as numbers without variables.

Front

Identify the constants in the expression y + 4 + 3x².

Back

The constants are 4.

Front

How do you evaluate an expression?

Back

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

Front

Evaluate the expression: Six more than the product of 4 and b when b = 3.

Back

The result is 18.