Question

What is multiplying by regrouping

Answer 1

Regrouping is basically the remainder . Regrouping to Multiply and Divide: Overview. One of the keys to success in regrouping to multiply and divide is mastery of the basic multiplication and division facts. Use a variety of activities to reinforce the facts daily.

Answer 2

It's very easy here is an example
19
X3
___

Nine times three is 27 so
19
X 3
____
7
You just leave the seven there then
2
19
X 3
_____
7
You put the two on top of the one.
After that you multiply 1x3=3 then the two on top of the one adds to 3 + 2