what is regrouping numbers in math?

Answer 1

You need to be a little more specific. But in general, regrouping is rearranging the numbers in an equation to make it easier to evaluate or solve.

For example, "1+4+9+6" is exactly the same as "1+9 + 6+4", but I find the second one easier to figure out, because numbers that sum to ten (1+9, 6+4) are easier to keep track of.

Or if you have 3x+2y+4x+1y=7, you can regroup the x's and y's together to get 7x+3y=7, which is simpler.

Answer 2

Do you mean what property in math allows you to regroup numbers in a problem?

That is the Associative property of either addition or multipication (depending on your problem)

Hope this helps!


EDIT:

Also, in general if you mean just changing the grouping in a problem, heres an example!

3+(4+5)=4+(3+5)

Answer 3

Im sorry but regrouping doesnt exist.