6th Grade Math Textbook, Progress

Solve: 
 3 m 48


 3 m
 3  48 
 3

m
 16

Check: 
3(
 16 )
 48

 48  48 True

?



Solve: 7 f
 13 
 90

 7 f
 13 

 13 
 90 

 13

 7 f
 77

 7 f 7 
 77  7

f
 11

Check: 7(
 11 ) 
 13 

 90


 90 
 90 True

?



Multiplication and Division

Equations with Integers

14-3

Over a 9-month period, Gina’s stocks

showed an average loss of 
$16 per month.

What was the total loss in Gina’s stocks for

that 9-month period?

To find the total amount, write and solve

an equation.

Let trepresent the total loss.

9 t 
$16

• 9 
  $16• 9

t
$144

t

9

Check: 

$16

$144

9


$16
$16 True

The total loss for Gina’s stocks over a

9-month period was 
$144.

Study these examples.

total loss divided by number of months equals average loss

t  9  
$16 or t 9 
$16

Multiply both sides by 9.

?

 Substitute 
$144 for t.

solution

Remember:


The product or quotient of two

integers having the same sign

is positive.


The product or quotient of two

integers having different signs

is negative.

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