4). Multiply the following decimals:
a).
b).
c).
5). I have 3 numbers that add up to 1. Two of the numbers are .4 and .3. What is the third number?

Answer ________________

6). I have 3 numbers that add up to 1. Two of the numbers are .6 and .15. What is the third number?

Answer ________________

7). I have 18 books. Each book is 1.5 inches thick. If I stack my books up, how high is the stack of books?

Answer ________________

8). If I buy 28 pencils at $.07 each, how much do they all cost together?

Answer ________________