Ch. 2 Order Ops Extra Review

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 calculations are performed. The acronym PEMDAS is often used: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Calculate: 18 + (6 – 2) × 2

Back

26

Front

What does the term 'parentheses' mean in mathematics?

Back

Parentheses are symbols used to group numbers or variables together to indicate that the operations within them should be performed first.

Front

Calculate: 5 - (7 + 3) ÷ 2

Back

0

Front

What is the result of multiplying before adding in an expression?

Back

Multiplying before adding follows the order of operations, ensuring that products are calculated first, which can significantly change the result.

Front

Calculate: (7 x 5) + (6 x 4)

Back

59

Front

What is the significance of the order of operations?

Back

The order of operations is crucial for obtaining the correct result in mathematical expressions, as it dictates the sequence of calculations.

Front

Calculate: 6·5 - (4 + 2) ÷ 2

Back

27

Front

What is the difference between addition and multiplication in terms of order of operations?

Back

In the order of operations, multiplication is performed before addition, which can affect the outcome of an expression.

Front

Calculate: 8 + 5·4 + (7 - 3)

Back

32