Operations With Integers

Adding, Subtracting, Multiplying, and Dividing Integers

BY- Jose Alberto Recio, Luis Salas

Adding Integers

1- If the numbers have the same sign you need add them

2. if the numbers have different sign subtract

examples-


same sign-

6+2= 8

-4+(-3)= -7


different sign-

8+(-3)= 5

-9+4= -5

Subtracting Integers

1- when you are subtracting forget the sign and subtract as usual then put the sign or the larger number

2- When you have 2 minus sign together it converts to a plus sign


examples-


4-(-8)= 12


-9-4=- 13

Multiplying Integers

1- the product of two integers with same sign is positive

2- the product of two integers with different sign is negative

examples-


same signs

2x3= 6

-4x-6= -24


different signs

8x-4= -32

-2x7= -14

Dividing Integers

1- the quotient of two integers with the same signs is positive

2- the quotient of two integers with different signs is negative

examples-


same signs-

32/4= 8

-8/-2= 4


different signs

40/-8=5

-50/10= -5