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阶段小达标,(,6,),QD,五年级上册,4,走进动物园,简易方程,1,2,3,提示,:,点击 进入习题,1.,解方程。,(20,分,),(1)5,x,4.5,30,(2)5.3,2.5,x,9.7,解:,5,x,4.5,4.5,30,4.5,5,x,34.5,x,6.9,解:,5.3,2.5,x,5.3,9.7,5.3,2.5,x,4.4,x,1.76,(3)7,x,5,x,120 (4)4,x,1.2,x,42,解:,12,x,120,12,x,12,12012,x,10,解:,2.8,x,42,2.8,x,2.8,422.8,x,15,(5)4,x,2.60.5,9.3,解:,4,x,1.3,9.3,4,x,1.3,1.3,9.3,1.3,4,x,8,x,2,2.,看图列方程并解答。,(,每题,5,分,共,10,分,),(1),2,x,12,30,解:,2,x,12,12,30,12,2,x,42,2,x,2,422,x,21,(2),5,x,2,x,147,解:,7,x,147,7,x,7,1477,x,21,3.,列方程解决问题。,(,共,30,分,),(1),李老师带了,816,元,正好可以买,3,个足球和,5,个篮球。每个篮球,96,元,每个足球多少元?,(7,分,),解:设每个足球,x,元。,3,x,965,816,x,112,答:每个足球,112,元。,(2),学校阅览室有多少本科技书?,(7,分,),解:设学校阅览室有,x,本科技书。,4,x,80,720,x,160,答:学校阅览室有,160,本科技书。,(3),小狗和小猫的体重各是多少千克?,(8,分,),解:设小猫的体重是,x,千克,则小狗的体重是,3,x,千克。,3,x,x,9,x,4.5,3,x,4.53,13.5,答:小狗的体重是,13.5,千克,小猫的体重是,4.5,千克。,解:,x,4,x,90,x,18,90,x,90,18,72,3,x,15,183,15,69,答:甲松鼠采了,69,个松果,乙松鼠采了,18,个松果,丙松鼠采了,72,个松果。,(4),三只松鼠各采了多少个松果?,(8,分,),
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