(-14又8分之1)+(+5点875)+(-1点25)
=(-14.125)+(+5点875)+(-1点25)
=5.875-(14.125+1.25)
=5.875-15.375
=-(15.375-5.875)
=-9.5
(-14又8分之1)+(+5点875)+(-1点25)
(-14又8分之1)+(+5点875)+(-1点25)
数学人气:739 ℃时间:2020-05-14 02:53:02
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