Question #4f603

1 Answer
Jan 29, 2017

12 xx 4 = 48

Explanation:

More important than the answer is what the expression means.
Multiplication is the short form of repeated addition

12 xx 4 can be understood as meaning:
There are twelve 4's all added.

4+4+4+4+4+4+4+4+4+4+4+4=48

12 xx4 can also mean that there are four 12's added:

12+12+12+12 = 48

This can also be understood as saying there is as array which has 4 rows with 12 in each, giving a total for the array of 48

Once the meaning is understood, the next step is to learn it.