北师大版2022-2023学年辽宁省沈阳市数学七年级秋季开学摸底考试（B卷）含解析

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ᓣ௃ᓅᜧ᱐2022-2023ḕ□ᦪ᥎ὃBᔁ.⚪"#ᑖ34ᑖ1.)2,3,4,5,10.5/ᦪ012345/ᑖ678/ᑖᦪḄᑖ:;ᑖ<0ᐳ>?@ᡂ/BCDḄEᑖᦪ.2.᪷ᩈᧇᵨJ40%L0Mᒕ1.5O0.᪷ᩈᧇPO.173.■!•U=ᑖW4XYᑖO=XYᔖO.4----5----4.ᨵ5/ᙊḄ^_`a3:4,ᑣᕜP`a0☢f`a.03570km5.ghi`jkτ----1---------1ᦋᡂᦪm`jka—0ᙠ.pᙢrstu4ஹ8xyḄz{a2.4CM,A>85ᙢḄ|▭Cza___km.6.6:=—0=0.6=4-60=:=%=ᡂ.7.᝞ᵬᦪᦪ=4:5,ᵬᦪ`ᦪ%,ᦪ`ᵬᦪ%.8./Eᑖᦪ0Ḅᑖ<`ᑖ:ᜧ18,ᑖLa30./ᑖᦪᩭa.7----9.ᵬᦪḄ;ᦪḄ;CD"ᵬᙳB80,ᵬ5ᦪḄ`a__.10.᪗0ᨵ-285᪗0᪗᳛895%,ᨵ__.11.)xᓄᡂ
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ᦪL1980sḄᦪa.21----12.g/¡P6c£Ḅ¤Yᩈᙽ¦ᡂ/ᨬᜧḄᙊ¨0ᙊ¨Ḅfa,©g./ᙊ¨¦ᡂ/ᨬᜧḄᙊ┵0./ᙊ┵Ḅfa.13.«ᐹY/☢Ḅ☢fa9XYᔖO0./YḄ⊤☢faXYᔖO.14.᝞5/¯ᯠᦪaஹ6Ḅᨬᜧ²³ᦪa1,´Ḅᨬ
²µᦪa.15.ᨵ.᪵/·ᦪp,¹a5/·ᦪḄ;0ºa5/·ᦪḄ»0p=.16.¼½70ᵫᓫÀÁ0ᵬ⌕30ᑖÃÄᡂ0⌕20ᑖÃÄᡂ0᝞Åᔠ70ᑖÃ>?Äᡂ.17.ᚮÈÉ0ᨬsÊᨵ8᪷0ᨬËÊ12᪷01CÌ5ÊxyC»1᪷0.ᚮÈÉᐳᨵ____᪷.1⚓/Ï11⚓

1Å.ÐÑ⚪"#ᑖ36ᑖ18.12334455619.Ò᪵ÓÔÕÒ᪵Ñ3,1735x1—x3—102125—x428,5,41—x5.6+—7522"ØÙ27020.ᑡÛᔠÑÜᡈYÞÐÑজ/ᦪḄ20%a100,./ᦪḄ|aáঝ/ᦪḄ*`204,./ᦪaá821.᝞r0஺8ᙊå0C஺ᚖ^è^_/B.?C8ᙊå0஺8ê_ëì)ᙊᑖ4/íᨴï.ðñ08òA43CḄ☢fDèíᨴï4M3NḄ☢fáMö.÷ø⚪"#ᑖ30ᑖ22.ᵨ240ᔖOPḄùúÁᡂ/PY᪾ü0Paýஹþx;Ḅ2,ýaþḄ2,./PY73Ḅfaá"ÿᜮᜐᶍ23.ᑮḄ200ᐗᐭ᦮᦮.ᜓᑮ!"#ᐰ%&ᣎ(“*+,-”/᝞1ᢥᑭ᳛2.52%7/ᑮ!89:ᣎ(*+,-;<ᐗ=24.᪥@Aᨵᩰ᪛20E/F᪛Gᩰ᪛Ḅ2,I᪛GF᪛Ḅ2.I᪛ᨵ;

2"70ᓟb/ᵬ]k";<ᓟb=27.⚗,-/ᵬஹYZrᔠt◤6ᜩwᡂ/yᙠᵫYrᐜt7ᜩ/ᯠ8ᵬrt4ᜩ/ᐳwᡂT⚗,-ḄU,᝞1ᒕḄ,-(Yrᓫt/⌕;<ᜩwᡂ=15l3⚓/o11⚓

3ᫀ⚪1.:3,4,5,10ᑖḄᑖᦪᐳᨵ1+2+3+4=10//rᵞ2524ᐸ—==
410510ᦑᣵZS¢ᑖᦪVWḄ/ᐳ9£ᡂ10-2=8VWḄᑖᦪ.ᫀ8.2.1.5+1-40%
,=1.5//5=1.5x-,3=2.5b¤T᪷ᩈᧇ¨2.5b.ᫀ2.5.3.1
,"=15ᑖ¤472
*ª«ᑖb=40ª«ᔖb.5ᫀ15,40.4.ᜧᙊḄ°±4²,ᑣᙊḄ°±3²,ᙊḄᕜ¨=%x3²=3µ²/ᜧᙊḄᕜ¨=4x4²=44ᔆ/TZᙊḄᕜ¨·G3¸²:4᜛=3:4¤oᙊḄ☢»=¸3r+2
2=[஻/,ᜧᙊḄ☢»=¸4²+2
2=4µᡝ,TZᙊḄ☢»·G2¸/4¸/=9:16¤4ᫀ3:4,9:16.l4⚓/o11⚓

45.:35ᓟb=3500000ᔖb/ᦋᡂᦪÁ·ÂÃG1:3500000¤/ஹ3ÄÅḄ`ÆG2.4cm,ÇIÈÉஹ8ÄÅḄÊ▭V`35x2.4=(ᓟb).ᫀ:1:3500000,84.6.:6:10="=0.6=36+60=3:5=60%=Ìᡂ.25ᫀ10,25,36,3,5,60,Ì.7.ᵬᦪYᦪ=4:5,ᵬᦪÍᡂ4Î/YᦪÏG5Î/(5-4)+5=1+5=20%(5—4)+4=1-4=25%ᵬᦪ·Yᦪ<20%,Yᦪ·ᵬᦪ;25%.ᫀ20,25.8.18+(7-4)=6,44x6247-7^6-42*TᑖᦪÐᩭGÒ.42ᫀ—.429.ᵬᦪ1.ᑣYᦪ3.2=2438QᵬᦪYᦪ=1Ò8=8:9.ᫀ8:9.l5⚓/o11⚓

510.285+95%=300A
ÌÕᨵ300Ö.ᫀ30011.3='=0.i42857,×k6ᦪØÙÚ/2171980+6=330Û1980ÜÝÞ6᦮◀/ᡠ:ᦪáâl1980ãäḄᦪØG7.ᫀ7.12.ᙊåḄæ»:324x6+2
2x6=3.14x9x6=169.56ç«ᔖb169.56+3=56.52ç«ᔖbTᙊåḄæ»G169.56ç«ᔖb/ᙊ┵Ḅæ»G56.52ç«ᔖb.ᫀ169.56ç«ᔖb¤56.52ç«ᔖb.13.9x6=54ª«ᔖbTé«Ḅ⊤☢»G54ª«ᔖb.ᫀ54.14.᝞1Zëìíᯠᦪ«ḄᨬᜧïÛᦪG1,ðñ×òḄᨬïóᦪGᫀab.15.Û7-2=5,3+2=5,ôõ2ஹ3ஹ5ஹ7öGQᦪ/÷ᔠ⚪ø¤ᡠ:TQᦪG5.ᓽp=5.ᫀ5.l6⚓/o11⚓

6=14=12(ᑖú)᝞1ÒÖᔠû/12ᑖú9:wᡂ.ᫀ12.17.12-8+1=5(ÿ)(8+12)x5+2=20x5+2=50(᪷)ᚮᐳᨵ50᪷.ᫀ50.⚪111111118.1-()-()-()-(•23344556111I111--1------F—++2334455623344556=-+0+0+0+-262319.:35x1—x3—1021=35%”1021=173-(3“25A25—x428r-2525x4+—x4284=100+3-,77⚓/11⚓

7=103-(Qu/41—x5.64—7512284=—x--1—755484=--1—,55=10-22=—x27+——x27,927=6+2,=8.20.(1)100-20%x-,53=500x-,5=300,2ᦪḄ56300(5(2)(20—4)+7=16-5--,8=25.62ᦪ625621.᪷89:ᑖ᪆=>ᙊḄ@A6BS^BC=2xgxrxr=r2.C8⚓/E11⚓

8ᡠ9*2=2.GᨴIAMBN☢K=@ᙊABMḄ☢K+5"▾-ᡧI஺“O"Ḅ☢K1221/O2ஹ2=-XTT4-r——xR2B=r
24ᡠ9A44CḄ☢KSTGᨴIAMBNḄ☢K.U.⚪22.VஹWஹXḄY240+4=60Zᔖ\V60x---7+5=60x—12=25Zᔖ\W60-25
x--2+3=35x-5=14Zᔖ\3X60-25
x——2+3=35x35=21Zᔖ\25x14x21=7350Z]^ᔖ\2V^_Ḅ_K67350]^ᔖ\.23.200+200x2.52%xl,=200+5.04,=205.4Zᐗ(ᑮbcdef9ᣎhij7k205.4ᐗ.o724.20x—x-103C9⚓/E11⚓

9=18x|=12Zmn᪛ᨵ12m.225.240x60%+-33240x0.6x±,2=216Zᔴᚮrst216ᔴ.26.630+4.2-70,=150-70,=80Zᓟ\/v(ᵬxydvz80ᓟ\.13127.Z{—%x4+Z7—4A32ஹ/=Z----+3,15311——x-53~?5(Z1-~1515=—xl5,15=2Zᜩ(᝞ᒕḄ7khᓫ⌕2ᜩᡂ.C10⚓/E11⚓

10C11⚓/E11⚓