⑴0.125+﹙+3¼﹚+﹙﹣3⅛﹚+﹙+3⅛﹚+﹙+⅞﹚+﹙﹣0.25﹚=多少?⑵﹙+3/17﹚+﹙-3.36﹚+[﹙+7.36﹚+﹙+14/17﹚]=多少?⑶(+1﹚+﹙-2﹚........+﹙+99﹚+﹙-100﹚
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⑴0.125+﹙+3¼﹚+﹙﹣3⅛﹚+﹙+3⅛﹚+﹙+⅞﹚+﹙﹣0.25﹚=多少?⑵﹙+3/17﹚+﹙-3.36﹚+[﹙+7.36﹚+﹙+14/17﹚]=多少?⑶(+1﹚+﹙-2﹚........+﹙+99﹚+﹙-100﹚
⑴0.125+﹙+3¼﹚+﹙﹣3⅛﹚+﹙+3⅛﹚+﹙+⅞﹚+﹙﹣0.25﹚=多少?
⑵﹙+3/17﹚+﹙-3.36﹚+[﹙+7.36﹚+﹙+14/17﹚]=多少?
⑶(+1﹚+﹙-2﹚........+﹙+99﹚+﹙-100﹚= 多少?
⑴0.125+﹙+3¼﹚+﹙﹣3⅛﹚+﹙+3⅛﹚+﹙+⅞﹚+﹙﹣0.25﹚=多少?⑵﹙+3/17﹚+﹙-3.36﹚+[﹙+7.36﹚+﹙+14/17﹚]=多少?⑶(+1﹚+﹙-2﹚........+﹙+99﹚+﹙-100﹚
⑴0.125+﹙+3¼﹚+﹙﹣3⅛﹚+﹙+3⅛﹚+﹙+⅞﹚+﹙﹣0.25﹚
=1/8+7/8-1/4+3.25+3.125-3.125
=1+3.25-0.25
=4
﹙+3/17﹚+﹙-3.36﹚+[﹙+7.36﹚+﹙+14/17﹚]
=3/17-3.36+7.36+14/17
=3/17+14/17+4
=5
(+1﹚+﹙-2﹚.+﹙+99﹚+﹙-100﹚
=(1-2)+(3-4)+...+(99-100)
=-1-1-..-1
=-1x50
=-50