6.4 Assignment

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value but does not include an equality sign.

Front

What is an equation in mathematics?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically including an equality sign (=).

Front

Is 92 + 3z an expression or an equation?

Back

It is an expression.

Front

Is 75 + x = 9 an expression or an equation?

Back

It is an equation.

Front

What is the difference between an expression and an equation?

Back

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

Front

Can you give an example of an expression?

Back

An example of an expression is 4t - 3 + 3r.

Front

Can you give an example of an equation?

Back

An example of an equation is 2 = 5x + y.

Front

Which of the following can be written as an equation: 'The product of 7 and n is more than 2' or 'Half of 5 plus b is 11.8'?

Back

Half of 5 plus b is 11.8 can be written as an equation.

Front

What does it mean for an equation to be true?

Back

An equation is true when both sides of the equality sign represent the same value.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.