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What are the five laws of elementary school mathematics calculation problems?
The five laws of elementary school mathematics calculation problems are:

Additive commutative law: additive commutative law is one of the laws of mathematical calculation. Refers to the addition of two addends, the exchange of addend positions, and the same sum

Additive associative law: additive associative law refers to the addition of three numbers, first adding the first two numbers or adding the last two numbers, and the sum is unchanged.

Multiplicative commutative law: Multiplicative commutative law is a calculation law. When two numbers are multiplied, the position of the exchange factor remains the same.

Multiplicative associative law: Multiplicative associative law is a kind of multiplication operation and one of many simple methods. Multiply three numbers, the first two numbers are multiplied and then multiplied, or the last two numbers are multiplied and then multiplied, and the product remains the same.

Multiplication and distribution law: refers to the sum of two numbers multiplied by one number. You can multiply them by this number first, and then add up the products.

Extended data:

Alphabetic notation

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

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

Multiplicative commutative law: a×b=b×a

Law of multiplicative association: (a×b)×c=a×(b×c)

Multiplication and distribution law: (a+b)×c = a×c+b×c

Baidu Encyclopedia-additive commutative law

Baidu Encyclopedia-Law of Additive Association

Baidu Encyclopedia-Multiplication method of substitution

Baidu Encyclopedia-Multiplication Association Law

Baidu Encyclopedia-Multiplication Distribution Law