<em>The mistake made by Chelsea was that she forgot to multiply the numbers in the bracket.</em>
<h3>Further explanation</h3>
Order of Operations in Mathematics follow this following rule :
- Parentheses
- Exponents
- Multiplication and Division
- Addition and Subtraction
This rule is known as the PEMDAS method.
In working on a mathematical problem, we first calculate operation that is in parentheses, follow by exponentiation, then multiplication or division, and finally addition or subtraction.
Let us tackle the problem !
<em>Chelsea's Working:</em>
<em>The mistake made by Chelsea was that she forgot to multiply the numbers in the bracket.</em>
<em>It should be done as follows:</em>
<em>Proof:</em>
<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: Middle School
Subject: Mathematics
Chapter: Order of Operations
Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point , Multiplication , Division , Exponent , PEMDAS , percentange , percent