Expressions 6.EE.A.1 and 6.EE.A.2

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 term 'coefficient' mean?

Back

A coefficient is a numerical factor in a term of an expression. For example, in 7x, 7 is the coefficient.

Front

What is the value of the expression 8x^2 + 3(x + 4) x 5 if x = 3?

Back

177

Front

What is the first term in the expression 6y^2 + 19 + 3y when y = 3?

Back

54

Front

How do you evaluate an expression?

Back

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

Front

What does the phrase '5 less than the sum of a number and 4' represent mathematically?

Back

It represents the expression (x + 4) - 5.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is the value of 0.5^2 + (1.4 - 0.8)^2?

Back

0.61

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What is the difference between a term and an expression?

Back

A term is a single mathematical entity (like 3x or 5), while an expression is a combination of terms (like 3x + 5).