Great Big Book Of Interger

Grade 7 Integers Review

Chapter 1
Zero pair is a pair of number with a positive and negative sign whose sum is Zero.
Examples: -6+6 +10-10 19-19
-16+16 -11+11 +14-14 63-63

Brackets are training wheels

Examples :

Have +4 owe -4

(+4) - (+4)= 0

Standard Form

+4 + -4

+4 -4

4-4

4-4 Standard Form

Integer Chips

Multiplying Integers

Example:

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

(2)x(3)=6

(2) (30=6 2(3)=6

Standard Form

Sign Rule

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

Chapter 3 :Dividing Integers

Partitive Division: is finding the total number in a group.

Sign Rule for Division-

if the quotient of 2 integers with the same sign with an even amount of (-) signs then it equals positive, if the quotient of 2 integers with different signs then it equals negative.

Links:

http://www.youtube.com/watch?v=S-AaL3q3NfQ

http://www.youtube.com/watch?v=2CRSXo3mE74

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