
Nathan B. answered 03/16/16
Tutor
5
(20)
Elementary and Algebraic skilled
This is just an extension of all the multiplication you learned before. Let's take each column in turn. First, the setup:
2830
*3
--------
0 * 3 = 0
2830
*3
--------
*3
--------
0
3 * 3 = 9
2830
*3
--------
*3
--------
90
8 * 3 = 24 (so we would drop the 4, and slip the 2 into the next column)
22830
*3
--------
*3
--------
490
3 * 2 + 2 = 6 + 2 = 8
2830
*3
--------
*3
--------
8490
And there's the final answer.