Understanding Order of Operations

Front

What is the Order of Operations?

Back

A set of rules that determines the sequence in which operations should be performed in a mathematical expression.

Front

What does PEMDAS stand for?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What operation do you perform first in the expression 8 + 2 × 5?

Back

Multiplication (2 × 5 = 10), then Addition (8 + 10 = 18).

Front

In the expression 3 + (2 × 4), which operation is performed first?

Back

Parentheses (2 × 4 = 8), then Addition (3 + 8 = 11).

Front

What does the 'E' in PEMDAS represent?

Back

Exponents.

Front

What is the result of 10 - 4 ÷ 1 × 5?

Back

10 - 4 ÷ 1 × 5 = 10 - 4 = 6, then 6 × 5 = 30.

Front

Which operation is performed first in the expression 44 ÷ 2 × (3 - 1)?

Back

Subtraction (3 - 1 = 2), then Division (44 ÷ 2 = 22), then Multiplication (22 × 2 = 44).

Front

What is the third step in the Order of Operations?

Back

Multiply/Divide in order from left to right.

Front

What is the error in the calculation 5 - 3 + 2 = 0?

Back

Addition was done first; it should have been 5 - 3 = 2, then 2 + 2 = 4.

Front

What is the result of 5 × (2 + 3)?

Back

5 × (2 + 3) = 5 × 5 = 25.