2022-2023年吉林省四平市某校校初一（上）月考数学试卷

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1(2)abc⊤Ḅᦪ_8.জJmḄKeঝJgḄK.ab|a|=5,b2=4,c3=-8(1)\aVbVO,Ja+bḄK(2)\=c>0,Ja-3b-2cḄK.*hijkᙠ2lmᩭopqᎷrᔣtpqḄu4v$WᦪᔣwpqḄu4v$ᦪpxḄᔜu4z{$(ᓫ~ᔖ)+5,-3,+10,-8,-9,+12,-10.(1)*hᨬ_ᔲoᑮ1k᝞ᨵᙠkḄᙢ(2)*hUkᨬ_ᔖ(3)ᙠpqx4.᝞pq1ᔖᝄQᑣ*h2ᐳ>?ᑮ|4-1|⊤41ḄK>?ᳮ%$41QᦪᙠᦪᡠḄQRSḄTU|4+1|>?|4-(-1)1,⊤4-1ḄḄK.>?ᳮ%$4-1QᦪᙠᦪᡠḄQSḄTU.-5Y-3-2-1012~3~4~(1)|4-(-1)|=(2)15+2|=(3)ᑭᵨᦪᡠᨵ¡ᔠᩩ£Ḅ᦮ᦪ¤¥|x+3|=5,ᑣஹ=e(4)ᑭᵨᦪᡠᨵ¡ᔠᩩ£Ḅ᦮ᦪx,¥¨+3|+|x-2|=5,Z᪵Ḅ᦮ᦪ_:.&3⚓ᐳ14⚓&4⚓ᐳ14⚓

2D«ὃᫀ¯⚪%᪆5.20222023²ᔡ᪍ḕ¶·¸j᪥᪥º2»Yᨴὃᦪ½¯ᔁூ.ᫀ௃Cஹ⌱+⚪ூὃ2௃I.MᦪNOᦪḄPQூ.ᫀ௃ூ9᪆௃B᪷S⚪TUVWXᨬZ[᪗]Ḅ᣸ᳫ`abcdeḄfghᨬiḄ.ூὃ2௃ூ9.௃ᨵᳮᦪḄ789:ᵫ⚪Tlmn᣸ᳫWXopḄfghᑖQr0.5,0.3,0.2,0.6,ூ9᪆௃fghᨬiḄr02ᨬZ[᪗].;⚪ᨚ=9᪆ᦑ⌱C.ூ9.௃6.Bூ.ᫀ௃2.Aூ.ᫀ௃ூὃ2௃AMᦪNOᦪḄPQூὃ2௃ூ9᪆௃ᙠᦪ?@⊤BCᦪ;⚪ᨚ=9᪆ᦪ?ூ9.௃ூ9᪆௃A;⚪ᨚ=9᪆7.ூ9.௃ூ.ᫀ௃AA3.ூὃ2௃ூ.ᫀ௃MᦪNOᦪḄPQᨵᳮᦪḄtᔠvwCூὃ2௃ூ9᪆௃DEFᦪ8--⊤BGᜧḄᦪ᪷Sxᡂzᦪ=5ᜩᦪSF|deḄN+6x5,ᓽU~9.ூ9᪆௃ூ9.௃;⚪ᨚ=9᪆9ᵫ⚪Tl+4+0+5+-3
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3ூ%௃=-18+30+21A=-18+51ÁஹÂÃ⚪=33ூᫀ௃ூὃ௃ᨵᳮᦪḄÏᔠ@A-3ூ%᪆௃ூὃ௃ᦪÄ⚪ᨚÆ%᪆ூ%᪆௃ூ%௃Ä⚪ᨚÆ%᪆%(»W)x(-36)ூ%௃%A.8⊤Ḅᦪ$-16.9.157=—36X—4-36X—4-36X-2612:.48=9—(-16)=25,=-18+30+21••ᢚÈ48=1,=-18+51=33e஺ᙠ8ḄwÉூᫀ௃••C⊤Ḅᦪ$9-12=-3.%^Ì=-9+2x(4-1+3ᦑᫀ$23.Ëஹ%⚪=-9+2X(4-4)ூᫀ௃=-9+0=-9.%^Ì=-5+ll+2+g=6+3=9.ூὃ௃ᨵᳮᦪḄÏᔠ@Aூὃ௃ூ%᪆௃ᨵᳮᦪḄÍÎÏᔠ@Aூ%᪆௃Ä⚪ᨚÆ%᪆Ä⚪ᨚÆ%᪆ூ%௃ூ%௃%^Ì=-9+2x(4-l+?%^Ì=-5+ll+21+|=6+3=9.=-9+2X(4-4)=-9ூᫀ௃=-9.%^Ì=-45x^x(-1)x|=-45x(-1)=5.ூᫀ௃ூὃ௃%:Wᨵᳮᦪᔠg,4,5,3/…ᨵᳮᦪḄÐ◀Ïᔠ@Aூ%᪆௃ᨵᳮᦪᔠ-5,-15Ä⚪ᨚÆ%᪆ᑖᦪᔠ/21.5,3,2…
•ூ%௃%^Ì=-45xqx(-§x=-45x(-J=5.ூὃ௃ᨵᳮᦪḄᭆÔÕᑖÖூᫀ௃ூ%᪆௃%eT)x(-36)Ä⚪ᨚÆ%᪆ூ%௃157=—36x—+36x—+36x—2612&7⚓ᐳ14⚓&8⚓ᐳ14⚓

4ூὃ௃%:Wᨵᳮᦪᔠ:g,45erÜÝ¡ÞᨵᳮᦪḄÏᔠ@Aᨵᳮᦪᔠ{-5,-1.5,-a...};ூ%᪆௃ᑖᦪᔠ-1.5.3/2Ä⚪ᨚÆ%᪆ூ%௃ூᫀ௃%᝞Mᡠ%-4*(_),a.g6=[_4_2x(-1)]^(2x(-4)-(-J)]0123×⊤Ḅ&ᑖᦪ$50%=14+*(-8+)8⊤ḄᎷᑖᦪ$:W)3850%<1-<-43ூὃ௃ᙠᦪ⊤Øᦪᨵᳮᦪᜧ*ÚÛூᫀ௃ᦪD.4ூ%᪆௃(2)জ8/=8-(-4)=12,Ä⚪ᨚÆ%᪆m=12+4=3ঝ••4B.C.D,E,cᑖßḄᦪ$-7,-4,-1,2.5,8,ூ%௃..n=-7+(-4)+(-1)+2+54-8=3.%᝞Mᡠூὃ௃,a.஺8ᙠᦪ⊤Øᦪ0123ᦪ4⊤Ḅ&ᑖᦪ$50%ூ%᪆௃Ä⚪ᨚÆ%᪆8⊤ḄᎷᑖᦪ$:ூ%௃3850%<1^3%পDe4(2)জ8c=8-(-4)=12.ூᫀ௃m=12+4=3%-4*(2ঝ••A,B.C,D.E,cᑖßḄᦪ$-7,-4,-1,2,5,8,:.n=-7+(-4)+(-1)+2+5+8=3.=[_4_2x(-1)]4-|2x(-4)-(-J)]ூᫀ௃(1)\a\=5,b2=4,c3=-8=14+*¨8+1)a=±5,b=±2,c=-2Va0,c=-2_14—31,:.ab

5a=5,b=—2ᡈa=—5,b=2(1)᪷HᨵᳮᦪḄÍì>[᪷Hᔣtpqv$W>ᫀeãa=5,b=-2,c=-2a-3b-2c=5-3x(-2)-2x(-2)=15(2)᪷HᨵᳮᦪḄÍì>ᫀeãa=-5,b=2,c=-2a-3b-2c=-5-3x2-2x(-2)=-7(3)᪷HᨵᳮᦪḄÍì[Ðì>ᫀa-3b-2c=15ᡈ-7.ூ%௃ூὃ௃%:প(+5)+(—3)+(+10)+(—8)+(—9)+(+12)+(-10)K=5+10+12-3-8-9-10ᨵᳮᦪḄÐ=27-30ᨵᳮᦪḄÏᔠ@A=-3.*hᨬᨵoᑮ1kᙠkw3ᔖᜐ.ூ%᪆௃(2)(+5)4-(-3)+(+10)=12(ᔖ).(1)ᑭᵨKḄrÜJaḄKᑭᵨ·᪷ḄrÜJbḄKᑭᵨä᪷ḄrÜJcḄK᪷Hav*hUkᨬ12ᔖ.h,åra.bḄK(3)|+5|+|-3|+|+10|+|-8|+|-9|+|+12|+|-10|,ᑖQæçèéq@Aᓽ>.=5+3+10+8+9+12+10(2)ᑭᵨKḄrÜJaḄKᑭᵨ·᪷ḄrÜJbḄK.ᑭᵨä᪷ḄrÜJcḄK᪷H=57(ᔖ).abc>0,åra.bḄ2x57=114()KᑖQæçèéq@Aᓽ>.*h2ᐳ>?ᑮ114.ூ%௃ூᫀ௃(1)v|a|=5,b2=4,c3=—85a=±5,b=+2,c=-27••aQ,c=-2ᦪíab?ᑮ114.ã23VV2ூὃ௃:.(x+3)-(x-2)=5,ᨵᳮᦪḄÍìX+3-X+2=5,ூ%᪆௃5=5,&11⚓ᐳ14⚓&12⚓ᐳ14⚓

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