Numerical Expression

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations (like addition, subtraction, multiplication, and division) but does not have an equal sign.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The order is: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). Often remembered as PEMDAS.

Front

What does the term 'evaluate' mean in mathematics?

Back

To evaluate means to calculate the value of an expression by performing the operations.

Front

In the expression 18 x 3 + 8 ÷ 2 - 1, which operation is performed first?

Back

Multiplication (x) is performed first.

Front

How do you find the balance after a withdrawal from a bank account?

Back

To find the balance after a withdrawal, subtract the amount withdrawn from the starting balance.

Front

What is the result of the expression 10 + 8 × 90 ÷ 9 - 4?

Back

The result is 86.

Front

What is the value of the expression 33 - 60 x 2 ÷ 3 + 18?

Back

The value is 11.

Front

How do you solve an expression with parentheses?

Back

You solve expressions with parentheses first, according to the order of operations.

Front

What is the value of the expression 7 + [46 – (4 ∙ 8)]?

Back

The value is 25.

Front

What does 'subtract' mean?

Back

To subtract means to take one number away from another.