1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+...+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01=(1+0.99-0.98-0.97)+(0.96+0.95-0.94-0.93)+...+(0.04+0.03-0.02-0.01)=0.04×100/4=1
=1+003-0.02-0.01=1
