Answer:
well, you ignored the 6 altogether, so that's not good. But you've almost got the right idea for 2.8 x 4.
it's just a matter of decimal points.
0.6 is 6 ÷ 10, right?
so if you want to say 8x4 is 32, that's cool but what about the 10?
use it now,. 32 ÷ 10 = 3.2
8 + 3.2 = 11.2
yeah-ya...... right?