Order of Operations (+, -, x, /) Practice - B (RC)

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which operations are performed in a mathematical expression. The standard order is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). Often abbreviated as PEMDAS.

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. It is a mnemonic to remember the order of operations.

Front

In the expression 42 × 10 - 72 ÷ 8, which operation is performed first?

Back

Multiplication (42 × 10) is performed first.

Front

Why is the order of operations important?

Back

The order of operations is important because it ensures that everyone solves mathematical expressions in the same way, leading to a single correct answer.

Front

True or False: Subtraction always comes before addition in the order of operations.

Back

False. Addition and subtraction are performed from left to right.

Front

True or False: Division always comes before multiplication in the order of operations.

Back

False. Multiplication and division are performed from left to right.

Front

What operation should be completed first in the expression 4 - 3 + 2 + 5 × 3?

Back

5 × 3 should be completed first.

Front

What is the result of the expression 72 ÷ 8?

Back

The result is 9.

Front

If you have the expression 3 + 4 × 2, what do you calculate first?

Back

You calculate 4 × 2 first, which equals 8.

Front

What is the result of the expression 4 + 3 × 2 - 1?

Back

The result is 10. (First calculate 3 × 2 = 6, then 4 + 6 - 1 = 9.)