2020-2021学年安徽省合肥市庐阳区七年级(上)期末数学试卷

学年安省合肥市阳区七年第一学期末数学试卷一选题本题10小题每小4分，分分A8B88DA3m3n2

n

ByxxyC3

a3

Dxy2xx2xaA1B7D11000ABC80Dxy3y+12xA5B3D①②65③④115⑤135A②④⑤

B①④

C①③⑤

D①④a50%Aa

B0.2

Ca

D1.5aC2ABMNA1B3C2cm31cm或n42

845①n845n+16②

③

④n4516A①③

B②

C①④

D③107

4973

343

75

76

11764972

3+7

A0B6CD9二填题每题5分，分112020GDP175511213ac|+14PPA

2AB三解题本题2小题每题8分共16分）152+2316四（大共2小，每8分满16分1732+22xyxyx118m12OMOAmONOB3AB

五（大共2小，每10分，分20分195201

1

23六（题分12分）21

12n

3七（题分12分）22152526340ab2285.57

x0180180xx350

//0.9/八（题分14分）23150OCOAOOD14OCODt0t12

OCODCOD903OC与ODOCOD

参考答案一选题本题10小题每小4分，分分A8B88D80A3m3n2

n

ByxxyC3

a3

Dxy2ABCDxx2xaA1B7D1x22a32a1D1000ABC80DA

B1000C80DCxy3y+12xA5

BCDx24+12xy+16+15①②65③④115⑤135A②④⑤

B①④

C①③⑤

D①④①453015②65③45④115⑤90135①⑤Ca50%Aa

B0.2

Ca

D1.5aa0.80.2aC2ABMNA1B3C2cm31cm或①

6MAM3cmcm624ACAC2AMAN31②AB6MAM3cmcm+6+28cmACAC44cmn42845①n845n+16②

③

④n4516A①③

B②

C①④

D③42nnD

107

4973

343

75

76

117649

72

3+7

A0B6CD97172343240116807671

+7

+7

3

+7

3+7428002+73+75760202271+73+7二填题每题5分，分112020GDP175511.7551

17551175510000000010121012

12105360121413ac|++c0a|caba0ab+aaa+

14PP

PA

4①AB66②ABP6③ABP26三解题本题2小题每题8分共16分）152+2332

1321+99++99+701642x+112xx24x412+27141四（大共2小，每8分满16分

1732+22

y4x2

yx12

y+322

y+242y3xy+5xy23122+521018m12OMOAmONOB3AB1MON2OA3AB五（大共2小，每10分，分20分19

52020120010823120B

10810822032100840840

六（题分12分211642

n+2213n1864642nn

nn2n2n2

n21320214520212894545

七（题分12分）22152526340ab2285.571

x0180180xx350

//0.9/a0.6b0.72350350227735071800.7+xx7415八（题分14分）23150OCOAOOD14OCODt0t12

OCODCOD903OC与OD