2022-2023学年北京某学校七年级（上）期中数学试卷

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2022-2023-.ᓅ001-᪥3.456ᦪ-7ᔁ94:;_________ᡂ>ஹ⌱A⚪Cᜧ⚪ᐳ20ᑖFG⚪2ᑖ1.3ḄHIᦪA.3B.-3C.AD.-A332.2ᑖJKᓝMᡃP“JK”SᑡMTFGUMVW28000XYZ28000ᵨ\-]ᦪ^⊤`aA.2.8X103B.28X103C.2.8X104D.0.28XI053.2ᑖ᝞bcᦪa,b,c,dᙠᦪe5ḄfagḄhiᑣḄklabed---1I-----i-----1iI-----1•------1-----1--->-5-4-3-2-1012345A.a>-4B.bd>0C.\a\>\b\D.b+c>04.2ᑖᑡᔜᦪḄA.--1
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2(2)ᑏ%&'(Ḅ஻Ḅᦪ+(ᵨ-஻Ḅ./⊤1).□□口口口□□□□□口□口□□□□□口口□□□口口口□□□□□□□□□□□□口口口□□□□□□□□□□□□□□口口口□□第图出重@123ஹ⚪(5⚪ᐳ64ᑖ819-219⚪4ᑖ822-23⚪89⚪5ᑖ824-269⚪6ᑖ):ᑏ%ᦻ<=>?@ABᡈD>EF.19.(20ᑖ)I@:(1)10-7-(-9)(2)(A-1+2)X(-12)324(3)(-1)3-84-4+1-3|.ভ(-1)2஺18Ax[2-(-3)2]6(5)-22+l.754-[(-2)X(-3)2-(A-1.25)2].3420.(8ᑖ)ᓄY(1)3஺-2?)8+8y(2)3a2-2a+2(/-஻).21.(8ᑖ)F(1)5x+3=3x-15(2)0.5x-0.7=6.5-\3x.22(5ᑖ)ᐜᓄY8`aba2+(5/-2a)-2(a2-3a),ᐸa=-5.23.(5ᑖ)ghijkᝅkmn8opᜓrs/Ḅᙢ☢vwᙢẈ8ᙢ☢y᪀᝞ᡠ18᪷ᡠ}Ḅᦪ(ᓫ)8ᑡ⚪:(1)ᵨ-஻?8”Ḅᦪ.⊤1ᙢ☢Ḅ☢S

3(2)஻=1.5,ᔉ☢+☢Ḅ88᝞v1ᙢẈḄᙳᵨ100ᐗ8gvᙢẈḄᵨᐗ24.(6ᑖ)ᨵ88925ᓟ᪗p8¡EḄᓟᦪ¢£ᦪ8¤¥Ḅᓟᦪ¢£¦ᦪ8§¨Ḅ©ª᝞1.5-32-0.51-2-2-2.5«ᑡ⚪(1)¬8ᨬ®¯᪗p°±Ḅ¬°ᓟ.(2)²᪗p°±³´88I¡Eᡈ¤¥ᓟ(3)µ9ᓟ¶·2.6ᐗ8ᑣ%¶¬8¹ᓬᐗ25.(6ᑖ)▅¼ᑡᩞᧇ᪷¿ÀbḄÁÂ8Ã⊤1ᦪÄw⊤1ᦪxḄŲÆÅḄÇÈ88᝞ᦪÄwÉÅPஹ஺⊤1ḄᦪXI,X2Ê8ÅP²ÅQËḄÇÈPQ=\x\-%2|.᪷wÌᩞᧇ8Íᑡ⚪᝞8ᙠᦪÄw8ÅAஹ8⊤1ḄᦪᑖÏ+-4,8(Aஹ8ÉÅḄÇÈᵨAB⊤1)8Å"+ᦪÄwkÑÅ8⊤1ᦪMl.AOBIII.(I)AB=ᓫÒÓ(2)µÅMᙠAஹBË8ᑣÔ+4|+|஻L8|=

4(3)µÔ+4ᵪÖ-8|=20,a×Ḅb;26.rÙÚḄᏔᦪ2,4,6,8,…᣸ᡂ᝞8Þᵨkᓝ<᪾á᪾âᐸḄãᦪ8ä&åæçèᓝ<᪾áḄᦪ<Ḅ8Þ«ᑡ⚪(1)ᓝ<᪾ḄãᦪḄéêë80.(2)µrᓝ<᪾wìíîÑ8¹᪾âï᜜Ḅãᦪ8ñḄᦪx,ᵨᦪ.⊤1ᓝ<᪾ḄãᦪḄé+5x.(3)ᙠîÑᓝ<᪾ḄEF8µ᪾âḄãᦪḄéêë2020,¬ãᦪòᑮᜧÔõ394,402,404,406,414.(4)᪾âḄãᦪḄéöêë2019ᔩ246810121416182022242628303234363840

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