Numeric and Algebraic Expressions

Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that stands for a number.

Front

What is the value of the expression 8 + (-2)³?

Back

0

Front

Which expression is equivalent to 50p + (15p + 5p)?

Back

(50p + 15p) + 5p

Front

What is the result of simplifying the expression 6 + 3(13 - 2) - 5²?

Back

14

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by performing operations and combining like terms.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

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 the expression 50 ÷ (5 + x)?

Back

50 ÷ (x + 5) is equivalent to the original expression.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.