列式計算:(1)比36米多15%的是多少米?(2)比36米少15%的是多少米?(3)比36米多4分之1的是多少米? (4)比36米少4分之1的是多少米?

列式計算:(1)比36米多15%的是多少米?(2)比36米少15%的是多少米?(3)比36米多4分之1的是多少米? (4)比36米少4分之1的是多少米?

(1)比36米多15%的是36*(1+15%)=36*1.15=41.4米
(2)比36米少15%的是36*(1-15%)=36*0.85=30.6米
(3)比36米多4分之1的是36*(1+1/4)=36*1.25=45米
(4)比36米少4分之1的是36*(1-1/4)=36*0.75=27米