Answer:
Odd digits like 1, 3, 5, 7, and 9will not be at ones place of the products.
Explanation:
If we look at multiplication facts of 8 we can see that,
8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96 etc
We can see that at the ones place, only even digits show up, like
0, 2, 4, 6, 8
But there is no odd digit at ones place.
So if Horation wrote the multiplication facts for 8, none of the odd digits will be there at ones place. Those digits include, 1, 3, 5, 7 and 9.