Partial products are different in regrouping in terms of how numbers are
clustered from a set equation as a whole delivering it individual but
naturally to all the numbers involved in the set.
Regrouping is just like the commutative or associative property of numbers.
Associative
property of addition is used when you want to group addends. This is
mainly used to cluster set of numbers or in this case, addends. How do
you use the associative property when you break apart addends? Simple
you group them using the open and closed parentheses or brackets. Take
for an example 1 + 1 + 2 = 4. Using the associative property you can
have either (1 + 1) + 2 = 4 or 1 + (1 + 2) = 4 clustered into place.
