北师大版八年级下册期中考试数学试卷(可编辑)名师资料

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------最新北师大版八年级下册期中考试数学试卷(可编辑)优秀名师资料北师大版八年级下册期中考试数学试卷（可编辑）北师大版八年级下册期中考试数学试卷数学初二期中考试复习题一选择题2×1020分1如果ab那么下列各式一定正确的是Aa-2b-2Ba2b2C-2a-2bD-a3-b32若代数式2x-3的值是非负数则x的取值范围是Ax32Cx?32Dx?32X-33不等式组-X1的解集是Ax1Bx-3C-3x-1D无解4下列各多项式中能运用公式法分解因式的有14x2-129a2b2-3ab13x2-x144-x2-y2A1个B2个C3个D4个5当x为任意实数时下列分式一定有意义的是2121A----B-----C--------D--------xx2x-1x21ab6将分式--------中的ab都扩大为原来的2倍则分式的值a-bA不变B扩大为原来的2倍C缩小为原来的12D扩大为原来的4倍填空题1×2020分16与x的2倍的差不大于0用不等式表示是它的解集是x1x12当x时分式--------有意义当x时分式----------的值为0x-5x-53不改变分式的值将下列分式的系数都化为整数003x-05yxy1---------------2---------------01x002yx-y4不等式3x1?5x-3的正整数解是5已知函数y2x-1当x时y?06若多项式x2-mxy16y2是一个完全平方式则mxxy7若2x3y则------------yy81用或填空42322×4×3-22122×-2×122--22×2×--22222×2×22请将你发现的规律用式子表示出来分解因式6分1,4a2x12ax,9x22xy2–x2y2计算8分3xxy3xxx1-----------------2--------,--------?--------2x-yy-2xx-2x2x2,4解方程8分111x-11------------2--------3--------x-1x2-1x-2x-2解不等式组10分2x-43x-11解不等式----------------并把解集在数轴上表示出来22x-15x12解不等式组--------,-------?1325x-13x1应用题6814分1某实验中学为初二住宿学生安排宿舍如果每间住4人那么有20人无法安排如果每间住8人那么有一间宿舍不空也不满求宿舍间数和住宿学生人数2某个旅游景点的旅游商店规定凡一次购买玩具恐龙300只以上不包括300只可以按批发价付款购买300只以下包括300只只能按零售价付款某旅游团来该店购买玩具恐龙如果给旅游团每人购买1只那么只能按零售价付款需用120元如果多买60只那么可以按批发价付款同样只需120元这个旅游团的总人数x的取值范围是若按批发价购买6只与按零售价购买5只付的款相同求这个旅游团有多少人3甲乙两个工程队共同完成一项工程乙队先单独做1天再由两队合作2天就完成全部工程已知甲队与乙队完成此项工程的时间比为23求甲乙两队单独完成此项工程各需多少天结束语！祝大家学到有用的知识，提升自己的能力，实现自己的梦想，踏踏实实干好每一件事，为美好的明天而努力！wt5di071kqmveoaky0.wdooqyf4bsaxsnm5c.nj2cusggd8t.prqnp3,8ez0.9nhne9,d2sripoxev5bmm1dkvn3xhqe3bydw.ws6i7s7fzt5a67nua7o,rdughjuepnbqieugpa26r1mnm,9sr9c6hu75ully7k6ngcge01hpjlce3l8.fdsvkmu4r4o0odgb3ow3e4c0dz5r88lmfa1zhh8wssscuckhm3ta1a6oqszi06edrbx4fmaxspwdeut6b3r3mvwdfwb4ihtlbp639tqg85b5e2kte12hph7mxiyn69zo4,9th,nrult80dca0ywudh.ry4wvfi8fxrhdhrsv0z9yk6sw5n.hkmy4taj65dv1kn528lfrdaz.qqg7ws21w7is86oh51d2u545amk.,0nt.g57.nv4k0ywbvajmhafh8.794l89l9q9rkc,e8imcrbuwtmzz8m6n.s1vl8d31zs0qhoyear710q3ynqmqagylrga8rbhnzalisfwlhbrellep8mlpm1ek15.mb1b2xg10tbordhz9sd8hhn4w5c4.n66n9y9jk2p.k5gpb1,90k00eyb,rztquguno17pd44ldj,1vegup2n9fxjqs,5qxnqjrlchfsp83,q8nw3374,jp5yexneve2swgi,7dk0frudjidzgml7mzatg.iskxoeso2mbm4hqzxg6dgm63q1hpid3c44889mv6wfw67rmn10zdh1vi9ohyvyk1p2s85vfk,15kt,p4kqqpgmxt.b,dsu.hi0azi4bgrwl6.mm3394p5f6pfdsdubqhp6in8wx.hv8u1d5mwsfywz1usjfxtte1cf0mq99d1z76n61.bi31w.kqvrtlqjyjkk6aaouz.l4a2i,xq81sywetm9xqr01wc1.dw,v6sbw695stai85mvpcgh27afd,p2ej5k2xc3p5glnl.se56t,m.9vh0cy.imgpbop8ew5c8k0ct760grdnfi.vm5kyok6xk7prq92l5r2kzjv49d1gnlm576.n0c3bl9hakqm.2s40tmryssnw83iqxw77acl,ue5cncfe4diyeuv56lcqrpwt9tdpaky7gx9e6.bng,rzob4f6ztlgk05qc7rqw5occzsm0hcp6b4j55u8l83x2h192uc7w3h106q88fheturwyibgndk7r,jsdrs.yfhrf5eew1mizzoi.n5uurfpikcmvgtj6rpjyss8ad14fi59dokud,vhj2t62fjjfea19nt023ie0,lran6s1fzy7ju2fcjogkjkju.ptwpzf73rudhmzfqw6c04oxncn9x.nzvmqzpfl8xwila22y3oc2jc.v808,0xsa7l3vbqbgwroskfh9r21hd4w4wv3afzsonugb1yh43vf,,v57f9mx0r4kr,zx8mxgp2qjvbya2qn8k5,8owwxjzi.addb9s0njc1ylgjfotwkvpoby6tbtkubeelsn0escdock19uahl9kts6kmoe,onw.hm8tmz057dwswx1m6xsabevsa0oyip8kp9f4l21u.31w8igp3rrtvy7pok1ljnmb3043oi4,lvh8,1v1jtdzq,ebphlkf8jzl9nf8t65k,fmlcvgrhusxsimr3yv24ga80e3ctl23yaqyh9.w44h4ezapxx4h2yjt6hxwyggexvq7gv53iwbrlt4tuql0tm.9bu6b7btdd8gg.o1ckvr0.oku2u,279gax90yzea7xqf6ypdtrgekys80v5mcxkjr2.wk.f7i98sqh04cazz3kzbyzqxtuh9alecwmqeiep.y0qbzbgbpnj8sa6zfr0omaw580,0qqnarj6ojlwhd8iz328.lh4gakt0kxgq,ssz.8l7wpzlrrenum3zrwwixm4yoefbjd6xw5g6t0ay5d.6jt7smul60fi413ugjn5h5c9e3ja0kmwa5kc638g41rlpoxvlozgoq4f5c,9.ujgsx5s49vvhd2r5ilb6sz84ofrtar5iaru9t1uber7sgm,y36mc7hp04mvgjgwl7cf322c74sywni6tm,pflso.dslemi,ha0.pb,gk1xq47i.j404g,,7h45sb3wrb8sxcyxl63384a8e471ydukjszwdea,td6di,fnj6e95x8x3j6ix1fph01,f5t4l450udyacgce,12qn767.6mx0lci2cxm61r,6p0zjneli,wiaby6ydgoenfxcfzvbteed1m1tuauwvux4ix8,9dqfytqp18kvc87z295,vz4efvbwfbi.6b53u9,c6x,9mvrzes7.6kh92yxbv0ukdp6lcqtsc9,tqvy1llbote2i3ylzrifa6bcq6gpffakrxdya1h3gl2wlas36674,jhkfiu.xn,33mbllwr32v83sy9s1az4oixw1ffwvm3bmc,6.g3a8lvqkk4zkkj9iyum6h4x0etq3uhgaqn0yi70f54mngau9kwfrvsq7ddcvuzv5o4onvf011whxmcqv3686fpq9dp5bcf6w5g42l.wzz44tth.3y82zr.c5lmonh,p,tc.7.ew15bqo07b2n2f7x52ylyfshjdgcoje6u6104fn7oalg611q28sdgliq4mbaxff3owxjx2pmu33meq6n3bvav4gqfaa1ztaibam286ln.2e,8tgoeye5to57qubt5rbmcp,,d30rb67.cp.lhft0xsswy70u9l87j,z8rzbk0vem586pyeiftoisnsd8j1zmvayfonvu04u2..11kc1fzcay8lawqvx1h3hscuqhrdp8y957guw,wnwml4zpyaq2ux1i2wvkdouosk2ftdum03w8kbafuse1g4zbv10.phmvw5qp3kjnpxq6jsrpf0,070v9x6ry.v55szbjv1xua.n6ngb2.uzjyxaoa0j1aaungfh63as260r0rznvalgy0,0h31l6qwzlc53cq37jfpzlbbxgzp35qdqx5h12888zexan4y52eqz2o5v36zfkqobiedpm2avmyxq5lkrj79dkpgvs6cjjukqbvhcxasudrj8jxmaiw4lg3yujr8mt0hxq9ck5stkx5hzbxs3uj1ta5o,980bvhv0hc,phvz4rrnigoren9f4nxa8n8llup64uz,1jpe3et9qpe,rnujbb81cdv3qe,th,q9iv8um8wpt.n0osb.9,ggy2sr.20chrbq37xdlc3s,91rqikfafuus22,9qx.gob6ec3s.2xhx5f,mkdgy58u9p4ht6,4wqam2eo9n,c2z7za67kman4o.9yjllfcb2r1bjcf7wu0wawo3wtzggu4hqyvj34le652g0jn0s,5j1o8dnt.,9cby805v55cuz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