What are the five laws and two properties of the second volume of mathematics in grade four? Letter addition law - Training Enrollment Network

What are the five laws and two properties of the second volume of mathematics in grade four? Letter addition law

Five laws of mathematics:

Additive commutative law: A+B = B+A.

Multiplicative commutative law: ab=ba

Law of multiplicative association: (ab)c=a(bc)

Multiplication and distribution law: a (b+c) = ab+AC.

Additive associative law: (a+b)+c = a+(b+c)

Subtraction property: a-(b+c)=a-b-c

The nature of division operation: (a+b) ÷ c = a ÷ c+b ÷ c (c ≠ 0)

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