(-1.25)+3.85+(-3又1/4）+（-1/2）+1 .75
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(-1.25)+3.85+(-3又1/4）+（-1/2）+1.75(-1.25)+3.85+(-3又1/4）+（-1/2）+1.75(-1.25)+3.85+(-3又1/4）+（-1/2）+1.75(
(-1.25)+3.85+(-3又1/4）+（-1/2）+1 .75
(-1.25)+3.85+(-3又1/4）+（-1/2）+1 .75
(-1.25)+3.85+(-3又1/4）+（-1/2）+1 .75
(-1.25)+3.85+(-3又1/4）+（-1/2）+1 .75
= -1.25-3.25-0.5+3.85+1.75
= -5+5.35
=0.35