## Friday, March 18, 2011

### Jasmin's Great Big Book Of Integers.

Integers-
-number lines
-integer chips

-negative
and posit
ive numbers (-,+)
-zero pair

When subtracting
something that isn't there, use a zero pair.

-6-(-4)= -2

-10+6= -4
6-7+2= 1
14-(-3)= +17

-3-(-7)= +4

-3-7= -10

3-7= -4

3+7= 10

-3+7= 4

Chapter 2-
Multiplying Integers

Sign rules-
Even =
When you have an even number of negative factors, the product is positive.

Odd=
When you have an odd number of negative factors, the product is negative.

• (+2) x (+3)=
• (+2) x (-3)=
• (-2) x (+3)=
• (-2) x (-3)=
• (+2) x (+3)=
• (+2) x (-3)=
• (-2) x (+3)=
• (-2) x (-3)=
• (+2) x (+3)= 2 groups of (+3)

(+2) x (-3)= 2 groups of (-3)

(-2) x (+3)= Remove 2 groups of (+3)

(-2) x (-3)=
• (+2) x (+3)=
• (+2) x (-3)=
• (-2) x (+3)=
• (-2) x (-3)=
• (+2) x (+3)=
• (+2) x (-3)=
• (-2) x (+3)=
• (-2) x (-3)=
• +6

Chapter 3
- Dividing Integers

What is partitive division?

Partitive division is where you know the total number of groups, and you are trying to find the number of items in each group. (groups of)

6/2=
3

-6/(-2)=
3

What is Quotative division?

Quotative division is when you share between groups.

(-6)/2= -3

Chapter 4
-
Order of Operations with Integers