Order of Operations and substitution Property New year Practice

Front

What is the Order of Operations?

Back

The Order of Operations is a set of rules that determines the sequence in which calculations are performed in a mathematical expression. The acronym PEMDAS is often used: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does the Substitution Property state?

Back

The Substitution Property states that if two values are equal, one can be substituted for the other in any expression. For example, if x = 5, then 4x can be replaced with 20.

Front

Back

79

Front

True or False: All addition must be simplified before any subtraction.

Back

False

Front

Back

7

Front

Evaluate: 4x - 3y when x = 5 and y = 2.

Back

14

Front

Back

4

Front

What is the first step in simplifying an expression according to the Order of Operations?

Back

The first step is to simplify any expressions inside parentheses.

Front

Back

81

Front

Back

10