Multiplication And Division Operation

Formula of multiplication operations

The following is the formula on multiplication operations, including:

For fractional numbers apply the formula:

Formula of division operation

The following is the formula on the division operation, including:

For fractional numbers apply the formula:

Example:
2 x 5 = 10
-4 x -3 = 12
60 : -5 = -12
-12 : -6 = 2

Properties of multiplication and division operations

The following are multiplication and division operations, among which are the following:

• Commutative and associative applies also to multiplication operations, namely:
• Commutative, a x b = b x a
• Associative, (a x b) x c = a x (b x c)
• Has an element of identity / neutral element, that is 1
• Have multiplication inverse

Example:
Associative law multiplication
(5 x 7) x -2 = 5 x (7 x -2)
35 x -2 = 5 x -14
-70 = -70

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Referensi :

• To'Ali's book math group accounting and sales

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