2020-2021学年江苏省徐州市七年级(下)期中数学试卷

学年江苏省徐州七年级（下期中数学卷一选题共8小）A

BC

DA3

x

B

36

Cx3

x36

Dxx

xA10

B0.20110

C

D7A2cm6cmC510

B6cm10D10cm1A

BC

DAab+baC1+1a2

B+33D1a13cm2A4B5C6cmDBDABCFCEAEFABC

A9BCD12二填题共8小）xyxy10

cm711a

m

a3m

12ABCDB50D

132x32k1420214

15ab6

+

16三解题本题9小题共84分解时写文说或算步。17

12021+202

a10

+a23+53+242021202218x+12+1+223x1915m2a2b+b4

20ABC1ABCeq\o\ac(△,A)eq\o\ac(△,)CBeq\o\ac(△,A)eq\o\ac(△,)C2eq\o\ac(△,A)eq\o\ac(△,)CCHAD3BB21ABCD22xy71xy3+4x2+

23DEABC1+21801DFAC2DFC24

mnn8+1602mn22+2

n+160+2

42

m441x2+2xy+2yy+102x2bca2+4a+130c32

16+89++25ABCD140D801BCC

2BEC3EBECCDF4140D80FBEC

参考答案一选题共8小）A

BC

DA3

x

B

36

Cx3

x36

Dxx

xAx32x3

Bx

3

x

Cx336Dx33CA10

B0.20110

C

D70.00000201106A2cm6cmC510

B6cm10D10cmA6B14C5+510D4+610

1A

BC

DAPQ2BMP1CMN12DPQQNMCAab+baC1+1a2

B+33D1aAC13cm2A4B5C6cmDxcmx2

x

x6CBDABCFCEAEFABC

AEFADEABEADEABEAEFADEABEADEABEA9BCD12AEFS6eq\o\ac(△,)S+eq\o\ac(△,)eq\o\ac(△,)cm2D二填题本题8小题每题4分共32分）x

yxyxyxy1037cm373+7+71717

11a

m

a

3m

8a3mm3am2

a3m

212ABCDB50D

BB5011DEDE5020132

xy6x

+923y2

x2k1420214

420212022

4

42021144

415ab6+

102+10+5a2baba+3030162

b2a+aabaaSa2

baa2

baab三解题本题9小题共84分解时写文说或算步。1712021+202

3

a

10

2

+a

23+53+24202120221202118

+20

2

a10

+aa8

a8

a863+53+2x

x1522x1542021202221

+118x+12+1+223xxx2122+62+6x251915m2a2b+b4135m

1+12a2

2+b4a2ab2

220ABC1ABCeq\o\ac(△,A)eq\o\ac(△,)CBeq\o\ac(△,A)eq\o\ac(△,)C

2eq\o\ac(△,A)eq\o\ac(△,)CCHAD3BB1eq\o\ac(△,A)eq\o\ac(△,)C2CHD3BBCC21ABCD

180

540

22xy71xy3+4x2+

13x3yxy34xy6xy73647181022

y2xyxy6xy7

36+145023DEABC1+21801DFAC2DFC1A1+1+180DF270DFBDE70DFC7024

mnn8+1602mn22+2

n+160+20n420m441x2

+2xy+22+2x+3y1

2bca20c32c++8

+b2+131x+2y2+2+22

yx2y20x0y+1y1x2b2ab+13a2+4+2+9a22320a03abac1acc3babb+10+1602

+10b+c

cb+2b+50c8c8a5++5+8825ABCD140D801BCC

2BEC3EBECCDF4140D80FBEC1