Algebra grade 6

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

How do you write an algebraic expression for 'add 8 to w'?

Back

The algebraic expression can be written as 8 + w or w + 8.

Front

What is the sum of p and 4 expressed algebraically?

Back

The algebraic expression for the sum of p and 4 is p + 4 or 4 + p.

Front

How do you evaluate the expression 25 - Z when Z = 16?

Back

Substituting Z with 16 gives 25 - 16 = 9.

Front

What is the value of the expression 3Z - 14 when Z = 8?

Back

Substituting Z with 8 gives 3(8) - 14 = 24 - 14 = 10.

Front

How do you evaluate the expression 12 + z when z = 8?

Back

Substituting z with 8 gives 12 + 8 = 20.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents one or more numbers.

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 corresponding numbers.

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.

Front

What is the order of operations in algebra?

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.