To get some feel for the effects of denormalization and gradual underflow, consider

a decimal system that provides $6$ decimal digits for the significand and for which the

smallest normalized number is $10^-99$

$.$ A normalized number has one nonzero decimal

digit to the left of the decimal point. Perform the following calculations and denormalize the results. Comment on the results.

a$.(2\mathrm{.}50000*10^-60)*(3\mathrm{.}50000*10^-43)$

b$.(2\mathrm{.}50000*10^-60)*(3\mathrm{.}50000*10^-60)$

c$.(5\mathrm{.}67834*10^-97)-(5\mathrm{.}67812*10^-97)$