For the multiplicaion, what you want to do is multiply like you do normally. I'll help you do number 1.
.18 x .6
So multiply it as you would, then worry about the decimals. 8 x 6 is 48, put down the and carry the 4. 4 .18 x .6 8
Then it is 6 x 1 is 6. Add the 4 and you get 10.
.18 x .6 108
Now we focus on the decimals. For .18 you have to move the decimal up 2 and for .6 you have to move the decimal up 1. That means that for its product you have to move its decimal up 3. This make 108 into .108.
