Evaluate Expressions with Variables

Front

What is an expression in mathematics?

Back

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

Tags

CCSS.6.EE.A.2B

Front

What does it mean to evaluate an expression?

Back

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

Tags

CCSS.6.EE.A.2C

Front

How do you substitute a variable in an expression?

Back

To substitute a variable, replace the variable with its corresponding value in the expression.

Tags

CCSS.6.EE.A.2C

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that dictates the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Tags

CCSS.7.NS.A.3

Front

What is the value of the expression 4(n-3) when n=11?

Back

The value is 32, calculated as 4(11-3) = 4(8) = 32.

Tags

CCSS.6.EE.A.2C

Front

How do you simplify the expression 7 - (2g) when g=1?

Back

Substituting g=1 gives 7 - (2*1) = 7 - 2 = 5.

Tags

CCSS.6.EE.A.2C

Front

What is the result of the expression 3h when h=3?

Back

The result is 9, calculated as 3*3 = 9.

Tags

CCSS.6.EE.A.2C

Front

How do you evaluate n/3 when n=12?

Back

Substituting n=12 gives 12/3 = 4.

Tags

CCSS.6.EE.A.2C

Front

What is the expression 7n when n=10?

Back

The expression evaluates to 70, calculated as 7*10 = 70.

Tags

CCSS.6.EE.A.2C

Front

What does 'None of the above' mean in the context of multiple-choice questions?

Back

'None of the above' indicates that none of the provided answer choices are correct.

Tags

CCSS.L.2.4E

CCSS.L.3.4D

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C