Copy and complete each of the Diamond Problems below. The pattern used in the Diamond Problems is shown at right.

1. 

   Step 1(a):

   Begin by multiplying $x$and $y$ to fill the product box.
   $0.5 · 0.4 = 0.2$

   

   Step 2(a):

   Then add $x$ and $y$ together to fill the sum box.
   $0.5 + 0.4 = 0.9$

   Answer (a):

   

2. 

   Hint (b):

   Follow the steps as outlined in part (a).

3. 

   Hint (c):

   You will know you are right when the product is equal to $−49$.

   More Help (c):

   Add $x$ and $y$ to complete the sum box.