UPSKILL MATH PLUS

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Theory:

Changing the order of the integers does not change the value of the result or the sum. This is called the commutative property of integers.
This property applies to addition and multiplication.

If $$a$$ and $$b$$ are any two integers, then:

$$(a + b) = (b+a)$$

$$(a × b) = (b × a)$$

Important!
The commutative property does not apply to subtraction.
While subtracting two integers, changing the order of the integers will change the result.

If $$a$$ and $$b$$ are any integers, then:

$$(a-b)\neq (b-a)$$
Example:
1. $$6 - 4 ≠ 4 - 6$$

2. $$(10 - 1) ≠ (1 - 10)$$