Ryan's Great Big Book Of Integers

Chapter 1 Grade 7 Integer review

Integers can be represented with

-number lines

- integer chips

red = positive

blue = negative

red and blue = zero pair When something isn't there use a zero pair.

example -6+6=0, -8+8=0, -1256+1256=0

(+4)+(-4)=0

standard form 4-4=0

Chapter 2 Multiplying integers

1. (+3)x(+2)

3 groups of positive 2

standard form (3) (2)

2.(+2)x(-3)

2 groups of negative 3

standard form (+2) (-3)

3. (-2)x(+3)

removing 2 groups of 3

standard form (-2) (+3)

4. (-2)x(-3)

removing 2 groups of positive 3

standard form (-2) (-3)

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 how many groups of a number are in a given value.

Quotative Division is sharing a certain number between a given value.

Chapter 4 Operations with Integers

(+5) x (-3) + (-6) ÷ (+3)=

(-15) +(-6) ÷ (+3)=

(-15) + (-2) = -7