Pre-Algebra : Pre-Algebra
Study concepts, example questions & explanations for Pre-Algebra
All Pre-Algebra Resources
Example Questions
Example Question #72 : Order Of Operations
Select the equation that reflects the phrase below.
First multiply 
Because of the order of operations, when we have multiplication and division we work from right to left. Since we first want to multiple 
Example Question #73 : Order Of Operations
Select the equation that reflects the phrase below.
First add 
Because we want to add 
Example Question #8 : Write And Interpret Simple Expressions That Record Calculations: Ccss.Math.Content.5.Oa.A.2
Select the equation that reflects the phrase below.
First subtract 
Because we want to subtract 
Example Question #11 : Write And Interpret Simple Expressions That Record Calculations: Ccss.Math.Content.5.Oa.A.2
Select the equation that reflects the phrase below.
First add 
Because we want to add 
Example Question #12 : Write And Interpret Simple Expressions That Record Calculations: Ccss.Math.Content.5.Oa.A.2
Select the equation that reflects the phrase below.
First subtract 
Because we want to subtract 
Example Question #81 : Operations
Simplify the following expression:
Follow the rules of order of operations. An easy way to remember them is to remember PEMDAS.
P - parenthesis
E - exponents
M/D - multiplication and division, done in order from left to right
A/S - addition and subtraction, done in order from left to right
By following this, we first evaluate what's in the parenthesis:
Next we evaluate the exponent:
Now we multiply from left to right:
Lastly, we add and subtract from left to right:
Example Question #81 : Operations And Properties
Simplify:
None of the other answers.
To solve this problem you must follow the order of operations which are a set of rules that say some mathematical operations are performed sooner than others. The most common acronym to keep track of the order is PEMDAS which stands for Parentheses, Exponents, Multiplication, Division, Addition, and lastly Subtraction. Deal with each operation and move onto the next.
Paretheses:
Exponents:
Multiplication:
Subtraction:
Example Question #82 : Operations And Properties
Simplify.
Follow PEMDAS.
Simplify parentheses:
Evaluate exponent:
Divide:
Example Question #81 : Operations
Simplify.
Follow PEMDAS.
Evaluate exponent:
Divide:
Multiply:
Example Question #83 : Order Of Operations
Simplify.
Follow PEMDAS.
Simplify parenthese:
Evaluate exponent:
Multiply:
Certified Tutor
All Pre-Algebra Resources
