2020-2021學(xué)年蘇科版七年級數(shù)學(xué)(下)期末復(fù)習(xí)題30道

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3x1xy1yyx2x4x2x3y①x+；②x+

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4y+4++4116ax22y+3+14m1m+41m2+6x+9a+b51+2a10xy12xy3xy

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2bba2a|+|b+1|012x80x3080x60808060a80+80x+x60a+a+b212x10xx203xx2020＝ABCDCG25

NGDHMEDQ131①②①3①②4cb+23a142151

2161②xy③③①3y+12+1y5

y5③x2

217yTxybx4a00b04211ab2Tmnn2①②nmn③nsttsd18

12150191

/ab

+720N9592365121000mm21202022x6x232020502012

QBCABCQBCABC2420211AB2B2801A2A230A3ABB25ABCABC41eq\o\ac(△,A)eq\o\ac(△,)C2CD3PBPABC4Q△△

A26ABCADDEEADEDAEFF12105

27ABCADBCDBCC401CAF228ABFHBD1+2180AC29MOQ90OMOQO1AIBAOBIABO

2AIBAOABMAID①40ADB②ADB30①CD2②ABEFEMFNAEMCFNO3③CDEABEMPNMPAEM102

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3yxxyyxy4+xxx15x120.2540.531m+1m．4+a223

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x+x+x1+18342y+y

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②nmn③nsttsdT12①n②①m③T212+2b42T12ab82①1xyxyx4Tmn+2402

2②mnn+21146142341120m242m1③cd

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22QBC22QBCA20B302a10a20a+30a7A3nn12m+30mm+10+2400mn2165n26525ABCABC41eq\o\ac(△,A)eq\o\ac(△,)C2CD3PBPABC4QA△△CC23BP4ABCeq\o\ac(△,A)eq\o\ac(△,)C

23BP426ABCADDEEADEDAEFF12105CADEDADEACCEDFADBACBACCADEADEDA

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GHBCADBCGADBAD9060DAEBAD28ABFHBD1+2180ACC1180+180DEDBBAC29MOQ90OMOQ

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MBABAO

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20

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