THE SIGN OF THE LARGER NUMBER (11) WAS ORIGINALLYNEGATIVE, SO THE A...

2. The sign of the larger number (11) was originally

negative, so the answer is –3.

Example:

1 1 2 4 2 2

Subtracting

When subtracting integers, change all subtraction to

addition and change the sign of the number being sub-

Working with Integers

tracted to its opposite. Then follow the rules for addition.

Multiplying and Dividing

Examples:

Here are some rules for working with integers:

(+10) – (+12) = (+10) + (–12) = –2

(+) × (+) = + (+) (+) = +

(–5) – (–7) = (–5) + (+7) = +2

(+) × (–) = – (+) (–) = –

(–) × (–) = + (–) (–) = +

Decimals

The most important thing to remember about decimals

is that the first place value to the right begins with

A simple rule for remembering the above is that if the

tenths. The place values are as follows:

signs are the same when multiplying or dividing, the

answer will be positive and if the signs are different, the

answer will be negative.

5

6

1

4

2

•

7

8

3

T

O

H

D

Adding

U

E

N

Adding the same sign results in a sum of the same sign:

C

I

S

R

M

(+) + (+) = + and (–) + (–) = –

A

L

When adding numbers of different signs, follow

this two-step process: