6.EE.2 - 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 value of the expression 9x + 4y when x=4 and y=8?

Back

68

Front

What does '9 more than 6 times a number' mean in expression form?

Back

6n + 9

Front

How can you express '12 more than a number'?

Back

n + 12

Front

What is the value of the expression 3 x 15s - 6h when s = 1.5 and h = 3?

Back

49.5

Front

What is the expression for 'twice a number'?

Back

2b

Front

What is a variable in an expression?

Back

A variable is a symbol (often 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

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.