负3.75+2.85+负1又4分之1减2分之1减负3.15加负2.5
=(负3.75+负1又4分之1)+(2.85减2分之1减负3.15加负2.5)
=-5-3.3
=-8.3(负4又2分之1)减(3又3分之2减【负0.13减(负0.33)】)(负4又2分之1)减(3又3分之2减【负0.13减(负0.33)】)=(负4又2分之1)减(3又3分之2+0.46)=(负4又2分之1)减3又3分之2-0.46=-8又1/6-0.46=-8又94/150
负3.75+2.85+负1又4分之1减2分之1减负3.15加负2.5
负3.75+2.85+负1又4分之1减2分之1减负3.15加负2.5
数学人气:336 ℃时间:2019-08-20 22:02:47
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