Expressions: Evaluate, Write, Simplify

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

How do you write 'the quotient of 13 and y' as an expression?

Back

Front

What does 'twice y' mean in mathematical terms?

Back

Front

How do you simplify the expression 3y + 3 + 4y?

Back

Front

What is the result of evaluating 27 - x when x = 10?

Back

The result is 17.

Front

How do you express '20 increased by y' in mathematical terms?

Back

Front

What is a variable in an expression?

Back

A variable is a symbol (usually a letter) that represents an unknown value.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation states that two expressions are equal.

Front

How do you write 'the sum of 5 and x' as an expression?

Back