Without a calculator, simplify the following decimal expressions.

1.  $0.04\left(0.7\right)$

   Hint (a):

   It may help to think of these numbers as fractions.

   $0.04 = \frac{4}{100}$

   Can you write $0.7$ as a fraction?

   Step 2(a):

   $(0.04)(0.7)= \left ( \frac{4}{100} \right )\left ( \frac{7}{10} \right )=\frac{28}{1000}$

   How can you write this as a decimal?

2.  $\left(1.8\right)\left(0.3\right)$

   Hint (b):

   Refer to the steps in part (a).