## Friday, March 25, 2011

### Justin Gacilan's Great book of Integers

Chapter 1

(+4)+(-4)=0
You have 4 and then you owe 4 which leaves you with zero
Standard Form;
+4 - 4 = 0
Making zero pairs

-16 = +16, -5 = +5, +6 = -6, -2= +2

-10 = +10, +3 = -3, +11 = -11, -9 = +9

Chapter 2 Multiplying Integers

Sign rule;
even; when you have an even amount of negative factors, the product is positive.
odd; when you have an odd amount of negative factors, the product is negative.

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(+2)x(-3)= two groups of (-3)which equals -6
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(+2)x(+3)=
2 groups of (+3)= +6

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(-2)x(+3)=
take away 2 groups of (+3)= -6

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(-2)x(-3)=take away 2 groups of (-3)= +6

Chapter 3 Dividing Integers

Sign Rule:
If you have no negative or an even amount of negative signs in a division question, the quotient is positive.

There are 2 types of division:

Partitive Division:
Making parts

EX:
6/2=3

6/-2=-3

Quotative Division:
Sharing you total with groups

EX:
(-6)/2=-3

(-6)/-2=+3

Chapter 4 Order of Operations

Brackets

Exponents
Division
Multiplication
Subtraction

(+5) x (-3) + (-6) / (+3) first you always follow BEDMAS so division is first in the question
after you do the multiplication and finally you do the addition.
example.

(+5) x (-3) + (-6) / (+3) = ( -17)

(+5) x (-3) + (-2)

(-15) + (-2)

(-17)

#### 1 comment:

1. Justin, good job on explaining your work. But next time, you may want to add some pictures,videos,and links to make your post nicer. Also, try to make your font bigger. Keep up the good work!