Friday, March 25, 2011

Justin Sunga's Big books of intergers post

Grade 7 Integer Review
Chapter 1

(+4) + (-2) = +2
Positive (4) and Negative (2) = positive 2
have 4 and owe 2 = have 2
Standard Form: 4 - 2 = -2
Making zero pairs:
-16 = +16, -5 = + 5, +6 = -6, -2 = +2,
-10 = +10, +3 = -3, +11 = -11, -9 = +9

Chapter 2 Multiplying Intergers :

Sign Rule:
Even: When you have an even amount of Negative factors, the product is Positive.
Odd: When you have odd amount of
Negative factors, the product is Negative.

(+2)x(-3)=
2 groups of (-3)= -6
- - -
- - -
(+2)x(+3)=
2 groups of (+3)= +6
+++
+++
(-2)x(+3)=
remove 2 groups of (+3)= -6
- - -
- - -
(-2)x(-3)=
remove 2 groups of (-3)= +6
+++
+++


Chapter 3 Dividing Intergers

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
Addition
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)


2 comments:

  1. Good job Justin! I liked the way you used different colors and made the font bolded. Next time, try to not use color yellow because it's hard to see and try and add some pictures. Also, add some videos and links. Keep up the good work!

    ReplyDelete
  2. Just noticed, this post also looked like Chris'. Just saying.

    ReplyDelete