六年級(jí)上冊數(shù)學(xué)期末復(fù)習(xí)必背公式①百分?jǐn)?shù)應(yīng)用題解題方法(1)求甲數(shù)是乙數(shù)的百分之幾？甲數(shù)÷乙數(shù)×100%(2)甲數(shù)比乙數(shù)多百分之幾,求甲數(shù)？乙數(shù)×(1+百分之幾)(3)甲數(shù)比乙數(shù)多百分之幾,求乙數(shù)？甲數(shù)÷(1+百分之幾)(4)甲數(shù)比乙數(shù)少百分之幾,求甲數(shù)？乙數(shù)×(1一百分之幾)(5)甲數(shù)比乙數(shù)少百分之幾,求乙數(shù)？甲數(shù)÷(1一百分之幾)(6)求甲數(shù)比乙數(shù)多百分之幾？(甲數(shù)-乙數(shù))÷乙數(shù)×100%(7)求甲數(shù)比乙數(shù)少百分之幾？(乙數(shù)-甲數(shù))÷乙數(shù)×100%(8)求乙數(shù)比甲數(shù)多百分之幾？(乙數(shù)-甲數(shù))÷甲數(shù)×100%(9)求乙數(shù)比甲數(shù)少百分之幾？(甲數(shù)-乙數(shù))÷甲數(shù)×100%(10)甲數(shù)占乙數(shù)的百分之幾？甲÷乙×100%六年級(jí)上冊數(shù)學(xué)期末復(fù)習(xí)必背公式②分?jǐn)?shù)應(yīng)用題解題方法1.甲數(shù)的幾分之幾是乙數(shù)①甲數(shù)×幾分之幾=乙數(shù)②乙數(shù)÷幾分之幾=甲數(shù)③乙數(shù)÷甲數(shù)=幾分之幾2、甲數(shù)是乙數(shù)的幾分之幾①乙數(shù)×幾分之幾=甲數(shù)②甲數(shù)÷幾分之幾二乙數(shù)③甲數(shù)÷乙數(shù)=幾分之幾3、甲數(shù)比乙數(shù)多幾公之幾①乙數(shù)×(1+幾分之兒)=甲數(shù)②甲數(shù)÷(1+幾分之幾)=乙數(shù)③(甲數(shù)-乙數(shù))÷乙數(shù)=幾分之幾4、甲數(shù)比乙數(shù)少幾分之幾①乙數(shù)×(1-幾分之幾)=甲數(shù)②甲數(shù)÷(1-幾分之幾)=乙數(shù)③(乙數(shù)-甲數(shù))÷乙數(shù)=幾分之幾六年級(jí)上冊數(shù)學(xué)期末復(fù)習(xí)必背公式③百分?jǐn)?shù)應(yīng)用題解題方法常見的分率計(jì)算成活率=成活的棵數(shù)÷植樹的總數(shù)×100%合格率=合格產(chǎn)品數(shù)÷產(chǎn)品總數(shù)×100%達(dá)標(biāo)率=達(dá)標(biāo)學(xué)生人數(shù)÷學(xué)生總?cè)藬?shù)×100%死亡率＝死亡數(shù)÷總數(shù)×100%發(fā)芽率=發(fā)芽種子數(shù)÷實(shí)驗(yàn)種子數(shù)×100%出勤率=實(shí)際出勤人數(shù)÷應(yīng)該出勤人數(shù)×100%出油率=油的質(zhì)量÷花生仁的質(zhì)量×100%正確率=正確數(shù)量÷總數(shù)量×100％命中率=命中球數(shù)÷投球總個(gè)數(shù)×100%近視率=近視人數(shù)÷總?cè)藬?shù)×100％含鹽率=鹽的質(zhì)量÷鹽水的質(zhì)量×100%出米率=米的質(zhì)量÷稻谷的質(zhì)量×100%出粉率=面粉的質(zhì)量÷小麥的質(zhì)量×100%含糖量=糖的質(zhì)量÷糖水的質(zhì)量×100%出勤率=出勤人數(shù)÷總?cè)藬?shù)×100％六年級(jí)上冊數(shù)學(xué)期末復(fù)習(xí)必背公式④百分?jǐn)?shù)應(yīng)用題解題方法1.甲數(shù)是乙數(shù)的百分之幾。計(jì)算方法：甲數(shù)÷乙數(shù)2.甲數(shù)比乙數(shù)多百分之幾，求甲數(shù)。計(jì)算方法：乙數(shù)×(1+百分之幾)3.甲數(shù)比乙數(shù)多百分之幾，求乙數(shù)計(jì)算方法：甲數(shù)÷(1+百分之幾)4.甲數(shù)比乙數(shù)少百分之幾，求甲數(shù)計(jì)算方法：乙數(shù)×(1-百分之幾)5.甲數(shù)比乙數(shù)少百分之幾，求乙數(shù)。計(jì)算方法：甲數(shù)÷(1-百分之幾)6.甲數(shù)比乙數(shù)多百分之幾。計(jì)算方法：(甲數(shù)-乙數(shù))÷乙數(shù)7.甲數(shù)比乙數(shù)少百分之幾。計(jì)算方法：(乙數(shù)-甲數(shù))÷乙