OLS Math 1.7 Exploring Numerical Expressions

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. It is the order of operations used to solve 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 operation do you perform first in the expression (5 + 17) ÷ 11?

Back

You perform addition first, calculating 5 + 17 before dividing by 11.

Front

Which words match the expression (3 + 5) x 7?

Back

The sum of three and five times 7.

Front

What is the result of the expression (6 + 4) - 2?

Back

The result is 8, because 6 + 4 = 10, and then 10 - 2 = 8.

Front

What does the term 'sum' mean in mathematics?

Back

The term 'sum' refers to the result of adding two or more numbers together.

Front

What does the term 'difference' mean in mathematics?

Back

The term 'difference' refers to the result of subtracting one number from another.

Front

What is the first step in solving the expression 8 + (3 x 2)?

Back

The first step is to perform the multiplication inside the parentheses: 3 x 2 = 6.

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations that represents a value.

Front

What is the result of the expression 12 ÷ 4 + 3?

Back

The result is 6, because you perform the division first: 12 ÷ 4 = 3, then add 3.