Math 152A

In-class Handout

Section 1.4-1.5

 

 

List the rules for the following operations:

 

Addition

Rule

Both numbers have the same sign

 

 

Both numbers have different signs

 

 

 

Subtraction: a b = a + (-b) ; then use addition rules

 

 

Multiplication

Rule

To multiply two numbers

 

 

Both numbers have the same sign

 

 

Both numbers have different signs

 

 

 

Division

Rule

To divide two numbers . . .

 

 

Both numbers have the same sign

 

 

Both numbers have different signs

 

 

 

 

Simply the following expressions:

 

 


 


 


List the Order of Operations

 

1

2

3

4

5

6