2021-2022学年浙江省宁波市慈溪市七年级（上）期中数学试卷

《2021-2022学年浙江省宁波市慈溪市七年级（上）期中数学试卷》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

2021-2022
ḕ᠄
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PᳮᦪḄKᦪᨵA.1KB.2KC.3KD.4K5.3ᑖ2020.•Rᵪ'᪥(U-3/+V-3a%-WX⚗ᑣ[Ḅ\-A.1B.2C.3D.46.3ᑖ2019.•ᐶ^_(Gᑡ`abcdḄ-A.3X2-iy-5x+l
=3x2--l-y+5y+lB.8a-3Cab-46+7
=8“-3ab-\2b-21C.23x+5
-32y-/
=6x+10-6y+3?D.3x-4
-2y+?
=3x-4-2y+2?7.3ᑖ2020•ᓭf1ghW=1,|j=4,lab<0,mUa+6Ḅ\EA.3B.-3C.±3D.±58.3ᑖ2021.•᠄nx=lopᦪqa?+3W+3Ḅ\-6,ᑣnx=-lorKpᦪqḄ\-A.3B.-3C.-6D.09.3ᑖ2021.•᠄sᖪuᨵJKvwxWḄyzᘤ|ᓬ~஺ᐗᐸKᑭ40%,K30%,rᖪu-A.ᑭ~B.~C.xᑭxD.PBᑨ

110.3ᑖ2019•'᪥ᜧ1Ḅc᦮ᦪḄOᙳ¡“ᑖ£”ᡂmK§¨᜻ᦪḄª.᝞:23=3+5,33=7+9+11,4234=13+15+17+19....²³U´Ḅ“ᑖ£ᦪ”ᨵK-59,ᑣ=A.6B.7C.8D.9ÆஹÇÈ⚪´⚪3ᑖᐳ18ᑖ11.3ᑖ2021.•^1(ᙠÉÊËÌ᝞Íᵨ+10⊤DÎ10ᑖÏÐᡷ20ᑖ⊤DE.12.3ᑖ2021•Ò□16ḄzÓ*+᪷-______.13.3ᑖ2021.•᠄UÔÕ+|3-bI=0m113a+26=.14.3ᑖ2019.•ÙÚ(4Épᦪqx+2yḄ\-6,ᑣpᦪq3x+6y+lḄ\-.15.3ᑖ2021.•᠄4ÉÝ7Þ=1.147,!ß7=2.472,151=0-5325ᑣA/1510Ḅ\--16.3ᑖ2018.•ᓭ^(᝞àᙠ3X3Ḅ“áâã”Çᦪ⌕åæᑡçᩩéêëḄᦪLª|!ì.ᑣB⊤DḄᦪ-.ஹíÌ⚪ᐳ72ᑖ17.6ᑖ2021.•᠄îGᑡᔜᦪᙠᦪï⊤Dðᩭòᵨ“V”bôõö§÷øᩭ.18.(12ᑖ)(2021.•᠄)yzù(1)(-0.5)-(-31)+2-2-(+7.5)ú44(2)[2-5X(-1)2ᡝ_2).(24ব½½+ូ(4)2(x-1)-3(2-3x).

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}~flvw+4+4.5-1-2.5-6+21eAᦈPQlᐗ2rᕜᑁᨬlᐗᨬlᐗ3C᪍Ḅ᱄cghlἠP1.5%஺ḄQᓬ7P1.5%஺Ḅ1%஺Ḅ᧕Q᝞ᙠᕜfᦈlἠᐰᓬ7QḄᦈxy᝞24.12ᑖ2021<•᠄?@A᝞|ᙠᦪdA⊤¡ᦪa,Bஹ⊤ᦪb,C⊤¡ᦪc,6ᨬḄ᦮ᦪQ£a,c¤¥|a+2|+c-72=0.

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42021-2022ÑÒÓÔḕÖ×@᠄?@ØÒÙdAᦪÑÚᔁὃᫀ⚪᪆Üஹ⌱Þ⚪⚪3ᑖQᐳ30ᑖ1.3ᑖ2018•᳝᪍-4Ḅ'âᦪA.4B.-4C.AD.-A44ூὃ௃'âᦪ.ூᑖ᪆௃᪷éêᨵìíϸḄ&ᦪîïð'âᦪñò.ூñò௃ñ|-4Ḅ'âᦪ4.ᦑ⌱|A.ூô௃r⚪ὃõ'âᦪḄö÷QøẠ⚪Qúûᭆýñ⚪Ḅᐵþ.2.3ᑖ2017᧡•
▪ᦪ16Ḅ᪷A.-4B.4C.+4D.±2ூὃ௃᪷.ூ⚪௃ᦪ.ூᑖ᪆௃᪷$᪷Ḅ%&'(ᦪ஺Ḅ᪷'*+(,-ᦪx,012="'ᑣx+஺Ḅ᪷'ᵫ7ᓽ9:;<⚪.ூ:=௃:>±42=16,?16Ḅ᪷±4.ᦑ⌱>C.ூB௃C⚪ὃD2᪷Ḅ%&.EF,-GᦪᨵI-᪷'JKLMNOᦪP0Ḅ᪷0;SᦪTᨵ᪷.3.3ᑖ2020V•□XY2020Zᐰ\]ᨵ9300_`abcdῃa'ᐸgᦪ$9300`ᵨijkᦪl⊤nMA.93X106B.9.3X107C.0.93XI08D.930X105ூὃ௃ijkᦪl,⊤ntᜧḄᦪ.ூ⚪௃ᦪPᦪv.ூᑖ᪆௃ijkᦪlḄ⊤nwxM“X10"Ḅwx'ᐸglW|a|<10,"M᦮ᦪ.%“Ḅ'⌕ᦪᡂ஻'ᦪ2_'஻ḄᦪḄᦪN

5.ᦪ210'஻G᦮ᦪ'ᦪ<1'஻S᦮ᦪ.ூ:=௃:>93007J=93000000=9.3X107.ᦑ⌱>B.ூB௃7⚪ὃDijkᦪlḄ⊤nl.ijkᦪlḄ⊤nwxM“X10”Ḅwx'ᐸglW|a|<10,"M᦮ᦪ'⊤nᐵ⌕G%”Ḅ஻Ḅ.4.3ᑖ2021V•᠄gᙠᑡᔜᦪ2,3.1415926,0,-¡'0.2020020002…£3I-2¤¥¦§_1-0g¨ᳮᦪḄ-ᦪᨵA.1-B.2-C.3-D.4-ூὃ௃¨ᳮᦪPª«᪷.ூ⚪௃ᦪPᦪv.ூᑖ᪆௃ᑖ¬᪷$¨ᳮᦪஹᨵᳮᦪḄ%&ᓽ9ᑨ%⌱¯⚗.ூ:=௃:>2,3.1415926ᑖᦪ'±²ᨵᳮᦪP30᦮ᦪ'±²ᨵᳮᦪP¨ᳮᦪᨵ-JE'0.2020020002…£I-2¤¥¦§_1-0,ᐳ2-'ᦑ⌱>B.ூB௃7⚪µ⌕ὃD2¨ᳮᦪḄ%&'EF¶᪷·Ḅ⌕¸¹º»¨ᳮᦪ'¨▲¹½¾ᦪM¨ᳮᦪ.᝞TT,V2.0.8080080008-£I-8¤¥¦§_1-0Âwx.5.3ᑖ2020V•Ãᵪ᪥ÆÇ-3//-3ÉÊ⚗'ᑣËḄA.1B.2C.3D.4ூὃ௃Ê⚗.ூ⚪௃᦮xP̪ÍÎ.ூᑖ᪆௃᪷$Ê⚗ḄᭆÐ(ÑxஹyḄ'ÓÔᐭᡠ(x×تᓽ9.ூ:=௃:>•••-3Ù/-3dbÊ⚗'••x=~1,y=2,ᦑ⌱>B.ூB௃C⚪ὃD2Ê⚗ḄÚÛ':=C⚪ḄᐵÜÝÊ⚗%&gḄI-“N”:NßàḄᢣᦪN.6.3ᑖ2019V•ᐶãäᑡåæ·GḄ)

6A.3f-(*y-5x+l)=3x2-yy+5y+lB.8஺-3Cab-4/?+7)=8஺-3ab-\2b-21C.2(3x+5)-3(2y-?)=6x+10-6y+3fD.(3x-4)-2(y+?)=3x-4-2y+2?ூὃ௃åæ·èæ·.ூ⚪௃᦮xP̪ÍÎ.ூᑖ᪆௃᪷$åæ·lᑣéêتᓽ9'ëÑGḄ⌱⚗.ூ:=௃:>Aஹæ·ì“-åæ·í'æ·îḄᔜ⚗ïᦋñ·'òᨬí,⚗Tᨵ·'ᦑ7⌱⚗┯õP8ஹæ·ì“-åæ·í'æ·îḄᔜ⚗ïᦋñ·'òg¥,⚗Tᨵ·'ᦑ7⌱⚗┯õPCஹᢥåæ·lᑣG·'ᦑ7⌱⚗GP஺ஹæ·ì“-åæ·í'æ·îḄᔜ⚗ïᦋñ·'òᨬí,⚗Tᨵ·'ᦑ7⌱⚗┯õ.ᦑ⌱>C.ூB௃C⚪ὃD2åæ·lᑣ.:⚪ḄᐵÜÝåæ·Ḅl>åæ·'Çæ·ì“+”'åæ·í'æ·îḄᔜ⚗ï¹ᦋñ·PÇæ·ì“-åæ·í'æ·îḄᔜ⚗ïᦋñ·.7.(3ᑖ)(2020•ᓭùYúû)|«|=1,\b\=4,üý0,þḄM()A.3B.-3C.±3D.±5ூὃ௃.ூ⚪௃ت⚪.ூᑖ᪆௃᪷$⚪F'ÿ
0,4ஹ6Ḅ4+Ḅ.ூ௃=4,**•6/=i1,b=i4»V^0,/.a+b=\-4=-3ᡈa+b=-1+4=3,ᦑ⌱Cூ௃⚪⌕ὃ!"#Ḅ$%ᐜ᪷(⚪)"#*+,ᦪḄ./0%

712345ᓫ.8.3ᑖ892021:•᠄=>?,8@x=lABᦪCD9+3F+3ḄG6,ᑣ@x=-lAIJBᦪCḄG98A.3B.-3C.-6D.0ூὃ௃BᦪC.ூK⚪௃᦮MNOP᦮CP$%QR.ூᑖ᪆௃Tx=1BᐭBᦪCV+3V+3,ᑭᵨYZa+3bḄTx=-1BᐭBᦪCᑭᵨ᦮MḄNOᓽ\]1^.ூ௃.."nABᦪC/+3a+3ḄG6,**•஺+3஻+3—6,:.஺+3ᓃ=3.hᑣ@x=-1AiC="X-1
3+3feX-1
+3=-Q+3ZO+3=-3+3=0.ᦑ⌱D.ூ௃⚪⌕ὃ!BᦪCḄᑭᵨ᦮MḄNOG⚪Ḅᐵk.9.3ᑖ892021:•᠄=>?,8lᖪnᨵpJqrstḄ0%ᘤvᓬ!஺ᐗᐸ,zJ{ᑭ40%,|zJ}30%,I~ᖪnG98A.{ᑭ!B.}!C.s{ᑭs}D.Fᑨூὃ௃ᑡBᦪC.ூK⚪௃᦮CP*+)P$%QR.ூᑖ᪆௃ᑖ]pJ0%ᘤḄqrᵨqrr34ᓽ\Z⍝I~ᖪnGT,G!.ூ௃᪷(⚪)\zJ0%ᘤḄqr=@9ᐗ81+40%7ᓬzJI0%ᘤ\a=^a9ᐗ8tᳮ\J0%ᘤḄqr—Aa9ᐗ81-30%7ᓬzJI0%ᘤ}9a-a=3a9ᐗ87a“7aᡠIᓬ,\2a'a=a9ᐗ8•7JJJ

8ᦑ⌱B.ூ௃⚪⌕ὃᑡBᦪCᑭ⚪A)}Aᑭ¡G/ᦪ.10.93ᑖ892019•§¨©᪥«¬®8¯)ᜧ±1Ḅ.᦮ᦪ²Ḅ³´ᙳ\“ᑖ·”ᡂmJ»¼᜻ᦪḄ¾.᝞23=3+5,33=7+9+11,43=13+15+17+19..Ä,ÅÆḄ“ᑖ·ᦪ”,ᨵzJG59,ᑣ²=98A.6B.7C.8D.9ூὃ௃ᨵᳮᦪḄÍÎ.ூK⚪௃Ïᦪ.ூᑖ᪆௃ᵫ⚪)Z஻Ḅ³ÎÑG“J»¼᜻ᦪÒVÓ2ÔÕIÖ³ÎḄᑖ.×GÓ᜻ᦪ3ÔÕ»¼]ØᵫÙÚᓽ\Û]VḄ“ᑖ·ᦪ”,ᨵzJG59AmḄ.ூ௃ᵫ⚪)Ó23ÜIJ.×ᵨßÓ3ÔÕḄ»¼᜻ᦪᐳ2+3+4+…+²=9m+289m-18J59GÓ3ÔÕḄ29J᜻ᦪ@,஻=7AÓ23ᑮ73,ᵨßÓ3ÔÕḄ»¼᜻ᦪᐳ97+2897-18=27J2@஻?=8AÓ23ᑮ83,ᵨßÓ3ÔÕḄ»¼᜻ᦪᐳ98+2898-18=35J2ᦑ²=8ᦑ⌱C.ூ௃⚪ὃåæçᳮḄᐵkG᪷(åæçᳮḄiᳮåæ]1^ᐸ,ᑖ᪆]ᑖC,⚗ᦪéêJCë,ᔜᦪ(íîḄïᓄÙÚGḄᐵk.ஹñò⚪9êó⚪3ᑖᐳ18ᑖ811.93ᑖ892021:•ô=õ?ö8ᙠZø,᝞2ᵨ+10⊤ú10ᑖûüᡷ20ᑖ⊤ú-20.ூὃ௃.ᦪ¾/ᦪ.ூK⚪௃þÙ⚪ÿ.ூᑖ᪆௃ᙠᐹᨵḄᐜᐸᑣᵨ⊤“”"“”.ூ#$௃#%ᵨ+10⊤)10ᑖ*+ᡷ20ᑖᵨᦪ⊤*+ᡷ20ᑖ⊤-20.ᦑ$ᫀ%-20.

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