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.
.108 is your answer.