重庆市渝中区七年级(上)期末数学试卷

22n+233+6322n+233+63重庆市七年（上）期末学试卷一选题每题4分，计48）A

B4

D44A

B

C

DA2

Bx+6xDx+xyAB2DA6BCDA3y

B1C3y37D3y2000A100C100

B2000Db5nA2B

D

1311m1n1311m1n3BOCAODA

B25

C30

D454MABNBMBA

B

2Da42019812A3B5D641AOA1AA11ACD94二填题每题3分，30）3345100003x﹣+5﹣

1x+3x+31x+93

xy+ay0060

220192222222220192222222

3x+3y2+3443y

x+3ABPBQPB3AB80km/140B1561.6三解题共72分8

12++]812a3+2b2a23bab3

+]6a

12138x21

22222222223

BCD1

232mm+n2n]+2

0

7AOB180OD3BOE710%5%2%ABCDEFGH2ABCDAD4EFGHEHED1HA2MEHMN3xx

MN3ABCDt0S

2222222210718641922

/7tpqt

pqpqt

F627|9F+52nx+1y9nFn

参答一选题每题4分，计48）4BDABBCDDBxyA2013BC

333DDxy37y1yy3D1A100BC100DA

n+23

5b

53+6ABOC

nnn123nnn123BOC+AODBOCAODMNBMABABABAMBMNBMBMNBMABMNABaDxyxy3xxx8xyx+12y123x+834Anan481na74a41a41

n11nn77nm1n﹣n11nn77nm1n﹣a481a8181二填题每题3分，30）10

a103.4511010aan

11nmnx﹣

+5y

3

1x11n+n6xx+3y1x312ya

2222

xyxay2+aaxx60x600+3xy＝xyx+3y5|+3y3

04+282+4yxx44xxx2x1010

k+11yk+7+2x138x

k34

kxyPBPAQAAPPBPAPAB12PBQPQ2AQABQBPBAPAB12PB12QPQ6

AQAB+BQ18AQ101810x/40mBn/A16xBA2+1.4km三解题共72分121+252212+

2222222222222222222222222222222122912a22aab+64b2ab[4+aab]ab3ab4+3a+ab

3ab4+3++a1234x5xx104+24210x52102x510x+45x+9xx9x3x13

2y8yx247x172312C3

2600

30%40%32400600mm

22222222222222222222228n+10mn

22m++2mnn2m+n+9＝+40m0n5524

40DOE3CODAOB180ODCOD50325BOExx50010%+1+5%500x1+2%x500x400

10040012OM2ON23DAEEDHSDHEt

EFGHH13ED12D57AD4A74132ADMM9EHENEHNMMx9NxOMONx9|3xx2.5OM|73x2.2x2.2Ox2.22.530tABCDEFGH0t

，两个长方形重叠部分的面积

12EFGH012my19286419286467277abbnnan1000b+a1000b+7nb1001b+7772y+52y9①14m5y+5y100y+5210y798x+539+x+398x+539y3+3

2222222222222222222222222222222

nxyn71527135F7112F1674|1716||74|F20

4

20|6|F8414F