Since we know that law of order states that sum or product of any two specific numbers will be same irrespective to their order. [tex]a+b=b+a[/tex] and [tex]a*b=b*a[/tex] .
Law of order is only applicable for addition and multiplication. It is not applicable to subtraction and division. Let us see it by an example.
[tex]50-25\neq25-50[/tex]
[tex]25\neq-25[/tex]
Law of grouping states that it does not matter how to order a group of numbers while adding or multiplying. [tex]a+(b+c)=(a+b)+c[/tex] and [tex]a*(b*c)=(a*b)*c[/tex].
Law of grouping is not applicable to subtraction and division. Let us see it by an example.
[tex]15-(5-3)\neq(15-5)-3[/tex]
[tex]15-(2)\neq(10)-3[/tex]
[tex]13\neq7[/tex]
Therefore, we can see that law of order and law of grouping is not applicable to subtraction.
Answer:
Because is easy to solve the problems when you break them with parantheses.
Step-by-step explanation:
