Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations (such as addition, subtraction, multiplication, and division) but does not include any variables.

Front

How do you evaluate a numerical expression?

Back

To evaluate a numerical expression, perform the operations in the correct order, following the order of operations (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

Front

What does it mean to simplify an expression?

Back

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

Front

What is the order of operations?

Back

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

Front

Evaluate the expression: 5 x (7 - 4) - 3 x 2

Back

9

Front

Write a numerical expression for the verbal expression: 'two plus twelve divided by four'.

Back

Front

Write a numerical expression for the verbal expression: 'eighteen more than five'.

Back

Front

Simplify the expression: 7^2 ÷ 5

Back

9 4/5.

Front

Evaluate the expression: -2 x (3 + 8 ÷ 4)^2

Back

-50.

Front

What is the result of dividing a number by zero?

Back

Dividing a number by zero is undefined in mathematics.