All ISEE Lower Level Quantitative Resources
Example Questions
Example Question #31 : How To Find The Solution To An Equation
Which equation first the description?
Half of the difference of  and a number is
.
In order to choose the right answer, you must know which mathematical operations each of these words refer to:
"Half of": Divide by two
"Difference": Subtract a number
"A number" or "An unknown number": The unknown number is a variable; let's call itÂ
"is" or "is equal to": add an equal sign
Â
So, in the problem "Half of the difference of  and a number isÂ
," we are looking for half of "the difference of 20 and a number". That is written as:
If that is equal to , the answer is:
Example Question #32 : How To Find The Solution To An Equation
Which equation fits the description?
The sum of two different numbers and  is
.
In order to choose the right answer, you must know which mathematical operations each of these words refer to:
"Sum":Â Add numbers
"A number" or  "An unknown number": The unknown number is a variable; let's call itÂ
"Is" or "is equal to": add an equals sign
So, in the problem "The sum of two different numbers and  isÂ
," we are looking to add two different variables toÂ
 that will equalÂ
.
The answer cannot be  because the problem asks for two different variables.Â
 represents two of the same number.
The answer isÂ
Example Question #33 : How To Find The Solution To An Equation
Solve for :
To solve an equation, first combine like terms. Move the  over to the other side of the equation by addingÂ
.
 Â
      Â
   Â
Next, remove the  from the variable by dividing byÂ
.
The answer is .
Example Question #31 : How To Find The Solution To An Equation
Solve for :
To solve an equation, first combine like terms. Move the  over to the other side of the equation by addingÂ
.
 Â
     Â
      Â
Next, remove the  from the variable by dividing byÂ
.
The answer is .
Example Question #35 : How To Find The Solution To An Equation
Solve for :
To solve an equation, first combine like terms. Move the  over to the other side of the equation by addingÂ
.
 Â
     Â
     Â
Next, remove the  from the variable by dividing byÂ
.
The answer is .
Example Question #36 : How To Find The Solution To An Equation
The sum of  and 6 is 56. What is the number?
"The sum of  and
 is
" can be represented by the equation:
To solve an equation, first combine like terms. Move the  to the other side of the equation by addingÂ
.Â
  Â
    Â
The answer is .
Example Question #37 : How To Find The Solution To An Equation
Solve for :
To solve an equation, first combine like terms. Move the  over to the other side of the equation by addingÂ
.
 Â
      Â
    Â
Next, remove the  from the variable by dividing byÂ
.
The answer is .
Example Question #711 : Isee Lower Level (Grades 5 6) Quantitative Reasoning
What is the value of  in the equationÂ
?
To solve for , you must get it alone on one side.
Start by subtracting both sides by .
Multiply both sides by .
Example Question #33 : How To Find The Solution To An Equation
What is the value of  in the equationÂ
?
Start by subtracting  from both sides.
Multiply both sides by .
Example Question #31 : Algebraic Concepts
What is the value of  in the equationÂ
?
To solve for , you will need to get it alone on one side.
Start by adding  to both sides.
Divide both sides by .
Â
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All ISEE Lower Level Quantitative Resources
