Complete the following subtraction problems.
a. 9.5 – 3.2
b. 6.213 – 1.8219
c. 38.9 – 9.2
d. 3.76 – 2.9
e. $ 6.50 – 1.88
f. $ 6.52 – 2.37
g. $ 4.47 – 1.18
h. $ 156.25 – 83.73