Properties of numbers

One operation that "undoes" another: addition <-> subtraction, multiplication <-> division

• Inverse operations

• Mr. Battaile

• Multiplicative identity

• Distributive property

a + (-a) = 0

• Additive inverse

• Multiplicative inverse

• Additive identity

• Mr. Richards

b / b = 1

• Ms. Jesdale

• Multiplicative identity

• Multiplicative inverse

• Commutative property

c + 0 = c

• Additive inverse

• Ms. Means

• Zero rule

• Additive identity

d x 1 = d

• Multiplicative identity

• Multiplicative inverse

• Mr. Alden

• Associative property

a(b + c) = ab + ac

(a)  

(a + b) + c = a + (b + c),

(a*b)*c = a*(b*c)

(a)  

a + b + c = b + a + c,

a*b*c = c*b*a

(a)