Write and interpret numerical expressions

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 does it mean to interpret a numerical expression?

Back

To interpret a numerical expression means to understand what the expression represents and how to evaluate it to find a numerical value.

Front

What is the sum of two numbers?

Back

The sum of two numbers is the result of adding them together.

Front

What is the product of two numbers?

Back

The product of two numbers is the result of multiplying them together.

Front

How do you write the expression for 'the sum of 5 and 3'?

Back

You write it as 5 + 3.

Front

How do you write the expression for 'the difference between 10 and 4'?

Back

You write it as 10 - 4.

Front

What does the expression '3 × (4 + 2)' represent?

Back

It represents 3 times the sum of 4 and 2.

Front

What is the value of the expression '8 + 2 × 5'?

Back

The value is 18, because you multiply first: 2 × 5 = 10, then add 8.

Front

What is the expression for 'the product of 6 and the sum of 3 and 2'?

Back

You write it as 6 × (3 + 2).

Front

What does '24 × (20 + 5)' mean?

Back

It means 24 times the sum of 20 and 5.