Order of Operations and Translating Expressions

Front

What is the Order of Operations?

Back

The Order of Operations is a set of rules that determines the sequence in which calculations are performed in a mathematical expression. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Translate to an algebraic expression: The sum of seven and a number.

Back

7 + m

Front

Translate to an algebraic expression: 4 less than x.

Back

x - 4

Front

What does it mean to 'translate' a verbal expression into an algebraic expression?

Back

To translate a verbal expression into an algebraic expression means to convert words describing a mathematical relationship into a mathematical equation using numbers and variables.

Front

Evaluate: 40 - 2^4 + 8

Back

32

Front

Evaluate: 10 + 6^2 x 2 ÷ 9

Back

18

Front

Translate to an algebraic expression: 5 times a number decreased by 17.

Back

5n - 17

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value in mathematical expressions and equations.

Front

What does 'decreased by' indicate in an expression?

Back

'Decreased by' indicates subtraction in an expression.

Front

What does 'the sum of' indicate in an expression?

Back

'The sum of' indicates addition in an expression.