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7th Grade Math Properties

AB
Inverse Property of Addition8 + -8 = 0
Inverse Property of Multiplication4/3 • 3/4 = 1
Identity Property of Addition5 + 0 = 5
Identity Property of Additiona + 0 = a
Inverse Property of Multiplicationx • 1/x = 1
Inverse Property of Additiong + -g = 0
Addition Property of EqualityIf y = 3, then y + 5 = 3 + 5
Multiplication Property of EqualityIf w = 7, then w • 9 = 7 • 9
Addition Property of Equality4 + 9 = 13, so 4 + 9 + 11 = 13 + 11
Multiplication Property of Equality4 + 5 = 9, so (4 + 5) • 8 = 9 • 8
Identity Property of Additonc + 0 = c
Identity Property of Multiplicationh • 1 = h
Distributive Propertya(b+c) = ab + bc
Distributive Property4(5 - 2) = 4•5 - 4•2
Multiplication Property of Zeroa • 0 = a
Multiplication Property of Zero5 • 0 = 0
Commutative Property of Addition3 + 8 = 8 + 3
Commutative Property of Additiona + b + c = c + a + b
Commutative Property of Multiplicationcd = dc
Commutative Property of Multiplication5 • 7 • 9 = 9 • 5 • 7
Associative Property of Addition(q + r) + s = q + (r + s)
Associative Property of Addition3 + (4 + 7) = (3 + 4) + 7
Associative Property of Multiplication3 • (4 • 12) = (3 • 4) • 12
Associative Property of Multiplication(ab)c = a(bc)


Middle School Strategies
Holy Innocents' Episcopal School
GA

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