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 is a coefficient?

Back

A coefficient is a numerical factor in a term of an expression. For example, in 5n, 5 is the coefficient.

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 2x + 3 when x = 5?

Back

2(5) + 3 = 10 + 3 = 13.

Front

How do you write '7 more than a number n' as an expression?

Back

n + 7.

Front

What is the term in the expression 4x + 5y?

Back

The terms are 4x and 5y.

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

What is the value of the expression 3a - 2b when a = 4 and b = 1?

Back

3(4) - 2(1) = 12 - 2 = 10.

Front

How do you express 'the sum of a number n and 3' mathematically?

Back

n + 3.

Front

What is the expression for '6 times a number n, decreased by 4'?

Back

6n - 4.