Numerical Expressions

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 have an equal sign.

Front

What does it mean to evaluate a numerical expression?

Back

To evaluate a numerical expression means to calculate its value by performing the operations in the correct order.

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. The order is: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

What is the difference between a sum and a product?

Back

A sum is the result of adding two or more numbers together, while a product is the result of multiplying two or more numbers together.

Front

How do you write the expression for 'the sum of 4 and 5 multiplied by 2'?

Back

The expression is written as (4 + 5) x 2.

Front

What is a quotient?

Back

A quotient is the result of dividing one number by another.

Front

How do you express 'the quotient of 18 and 9 multiplied by 6'?

Back

The expression is written as (18 ÷ 9) x 6.

Front

What does it mean to subtract a number from another?

Back

To subtract a number from another means to take away the second number from the first number.

Front

How do you express 'subtract 214 from 721'?

Back

The expression is written as 721 - 214.

Front

What is a product of two numbers?

Back

A product is the result of multiplying two numbers together.