2023年广东省省实天河小升初数学模拟试卷及答案解析

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2023
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X2D.324?-H4,32.2ᑖᙠ012aḄ2345☢67ᨬᜧḄᙊᑣ234Ḅ☢:;ᙊḄ☢:<=')A.2>1B.4>IC.4>nD.n>43.2ᑖ᝞E▢GHᑖḄ☢:ᓰ᦮7E4☢:ḄA-5B-iciD-54.2ᑖMNOPQ147RSᐳT2.1ᓟV᝞WPX᪵ḄRS13ᓟVᜧZᨵ)7.A.2007]^B._ᑮ507C.80b75.2ᑖ☢ᔜᦪcᦪdec7fḄ')A.803070B.8030700C.8003700ᑨi⚪ᐳ5⚪ᑖ10ᑖ⚪2ᑖ6.2ᑖklmnᵬ⌕4ᜩqᡂs⌕5ᜩqᡂ.ᵬsḄmᦔᨬu='4>5..ᑨiv┯7.2ᑖxyaḄᑖ{|ᨵ2ஹ5]᜜Ḅxᦪᡠ]_ᓄyᨵ▲ᦪ..ᑨ1515iv┯8.2ᑖ☢:Ḅ7E4ᕜ1..ᑨiv┯9.2ᑖ0.6ḄᦪᔣᑮᩭḄᑨiv┯100010.2ᑖ7134124ᔖ8ᔖ.X7134ᑖᡂ37qᐰ᪵Ḅ234ᑨiv┯.⚪ᐳ10⚪ᑖ20ᑖ⚪2ᑖ11.2ᑖ1285¡¢£712.8#12.8.

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=.14.2ᑖª«234¬vᢚvᢚ®Ḅ¯04'.15.2ᑖᨵ«148ᔖ36ᔖḄ134¬᝞W⌕°ᡂ±²³᪵ᜧḄ234´µᒕ·°ᡂḄ234Ḅ01ᨬᜧ'____ᔖ.16.2ᑖ᝞E±ᵬᦪ;sᦪḄ='4>5,ᑣsᦪ=ᵬᦪb%º᝞Wsᦪ'60,¨©ᵬᦪ'.ᵬᦪ>I_I_I_I_Isᦪ>I1II1117.2ᑖ⌕»7ᜧ23¼½¾¿⌕ᵨ723¼½.18.2ᑖÁÂÃÄÅÆÇÈᜧÉÊËᜩ1000ᐗ▲Í40κÉÊËᜩ650ᐗ▲Í25Î.ÏÐ115ÑÒÓ£ÔÕᔊ×Øᱥ✂᝞WÈᵨ]^ÛÉÊᨬÜÝᵨyᐗ.19.2ᑖᵬஹsᙢß60ᓟM᪍8dᵬᙢÇá£sᙢâãdäåᙳᑖçè1ᓟ®ãdäåᙳᑖçè0.8ᓟM᪍ᵬᙢᑮsᙢᐳᵨQd.20.2ᑖᵨ2ஹ4ஹ6ஹ3é24.¯.êë⚪ᐳ3⚪ᑖ34ᑖ21.10ᑖìíᑏÇ#ᦪ.1+1=1+2=ñ26=2mm=1.25X0.8=439135.-5161.6=2.4X5=4X3=1.2+8=3xJLX5=985622.12ᑖï1X2+2X3+3X4+4X5+5X6+…+99X100ḄðW.23.12ᑖê3óᡈ=õ.x-15%x-10%x=30x3=14>0.2.7ö.êë⚪ᐳ6⚪ᑖ46ᑖ24.6ᑖᨵ6÷ø⇾ú]û⇾ø450ᓟV.üýþQX᪵Ḅø⇾18÷ú]

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5ூ+௃+☢16,ḄV8,2,ᕜ8+2
2=20,☢16,4,ᕜ4X4=16,☢Ḅ)"ᕜJX.ᦑ⚪Ḅ┯Ḅ.ᦑᫀ{C┯.9.2ᑖ0.6Ḅfᦪᔣ3#fᑮᩭḄXᑨdv┯1000ூ+௃+0.6Ḅfᦪᔣ3#fᑮᩭḄ1X
0¡`ᦑᫀ{X.10.2ᑖX)#24ᔖ£#8ᔖ£.D)Xᑖᡂ3)oᐰX᪵ḄJᑨdv┯ூ+௃+z{24+8=3¡ᡠ1Ḅ3¡#ᡠ1D)Xᑖᡂ3)oᐰX᪵Ḅ#z¥⚪¦.ᦑᫀ{v.3.§¨⚪ᐳ10f⚪#gᑖ20ᑖ#hf⚪2ᑖ11.2ᑖ©128ª«¬®2)12.8¯12.8.ூ+௃+128-12.8
4-12.8=115.24-12.8=9©128ª«¬®9)12.8¯12.8.ᦑᫀ{9.12.2ᑖᢥ±²³¬§ᦪ10ஹ13ஹ16ஹ19ஹ22ஹ25ஹ28.18ஹ27ஹ36ஹ45ஹ54ஹ63ஹ72.ூ+௃+1
19+3=2222+3=25

625+3=28`(2)45+9=5454+9=6363+9=72`ᦑᫀ{22,25,28`54,63,72.13.(2ᑖ)᝞C243=2+3+4,5A4=5+6+7+8,·¸(3A2)=35ூ+௃+2A(3A2)=2A(3+4)=2A7=2+3+4+5+6+7+8—35ᦑᫀ{35.14.(2ᑖ)ºX»¼vᢚ#vᢚḄ¾.ºX»¼vᢚ#vᢚḄ¾.ᦑᫀ{.15.2ᑖᨵX»48ᔖ£#36ᔖ£Ḅ¼#᝞C⌕¿ᡂÀÁ᪵ᜧfḄÂÃᒕÅ#¿ᡂḄfḄᨬᜧ12ᔖ£.ூ+௃+º48Æ36ᑖ+zᦪ48=2X2X2X2X3,36=2X2X3X3,48Æ36ḄᨬᜧÇzᦪ2X2X3=12`¿ᡂḄfḄᨬᜧ12ᔖ£`ᦑᫀ{12.16.2ᑖ᝞"#ÀᵬᦪqᦪḄ45,ᑣqᦪᵬᦪN25%`᝞Cqᦪ60,·¸ᵬᦪ48

7ᵬᦪII_I_I_IᦪI1IIIIூ+௃+:60XÊ48`560-48
4-48=124-48=25%`ᵬᦪ48,ᵬᦪqᦪN25%.ᦑᫀ{25,48.17.2ᑖ⌕ËX)ᜧÌÍÎ#ÏÐ⌕ᵨ8)fÌÍÎ.ூ௃+ᑭᵨfÌÓᡂX)ᜧÌ#ᜧÌḄhᩩÕHÏÐ◤⌕2)fÌ#2X2X2=8)⌕ËX)ᜧÌÍÎ#ÏÐ⌕ᵨ8)fÌÍÎ.ᦑᫀ{8.18.2ᑖ×ØÙÚÇÛÜÝᜧÞßhàhᜩ1000ᐗ#▲â40ã`fÞßhàhᜩ650ᐗ#▲â25ã.äåfæ115çèé®êëᔊíîᱥ✂#᝞CÝᵨ1HñÞß#ᨬòóᵨ{2950ᐗ.ூ௃+100040=25ᐗ6504-25=26ᐗ25<26`ᡠ1ᜧÞḄᡂxôò`ᵫ¥ö÷#ᙠùúgûḄüýR#NÝᵨᜧßᨬḕÿ.ᵫ115=40+75=40+25X3,ᓽᵨᜧ3ᨵ.᪵ᨬḕ◤⌕1000+650X3=2950ᐗ.ᨬ!ᵨ"2950ᐗ.ᦑᫀ"2950.19.2ᑖᵬஹ()ᙢ+,60ᓟ./᪍812ᵬᙢ345(ᙢ67189ᙳᑖ;<1ᓟ.=7189ᙳᑖ;<0.8ᓟ./᪍2ᵬᙢᑮ(ᙢᐳᵨ@ᦋ1.__9__ூ௃CD7Ḅ18Fxᑖ;ᵫ⚪HIx+0.8x=60

81.8x—60x=100.IOX2=20°.Pᑖ;33,2஺2ᑖ;=U139/᪍2ᵬᙢᑮ(ᙢᐳᵨ@ᦋ1.9ᦑᫀ"12.920.P2ᑖᵨ2ஹ4ஹ6ஹ3X24YP3-2X4X6.ூC௃C᪷_⚪H`Ia3Ḅbcᦪe4X6=24,f᜜)cᦪ3-2hijᯠ=+lᓽ`Iᑮ24m`nIᑮP3-2X4X6=1X4X6=4X6=24ᦑᫀ"P3-2X4X6.b.C⚪Pᐳ3⚪ᑖ34ᑖ21.P10ᑖopᑏ3Iᦪ.1+1=1+2=-§_X26=2T=1.25X0.8=439135.516+1.6=2.4X5=4x2=1.2+8=J.XAX5=9856ூC௃C1**,*1_—__7_—&X26=1227=21.25X0.8=14312921355164-1.6=102.4X5=124z3_11.2+8=9.298656222.(12ᑖ)~1X2+2X3+3X4+4X5+5X6+…+99X100Ḅ.ூC௃C1X2+2X3+3X4+4X5+5X6+…+99X100=JLX99X(99+1)X(99+2)3

9=Ax99X100X1013=33330023.P12ᑖCᡈ.x-75%x-10%x=30x3=140.2.7ூC௃C75%x-10%x=300.15x=30x=200ঝX3=140.270.2X=3X1470.2x=6x=30.C⚪Pᐳ6⚪ᑖ46ᑖ24.P6ᑖᨵ6⇾-`n⇾450ᓟ.@᪵Ḅ⇾18`n⇾ᓟPᵨ)XூC௃C4504-6X18=75X18=1350Pᓟ;D`n⇾xᓟ450x6:186x=450X18x=450X186jt=1350`n⇾1350ᓟ.25.P6ᑖᖪ¡ᓬ3£¤¥8¦¦§¨240ᐗᓬ3¦©⊟¥898ᐗ.£¤¥«©⊟¥ᐳᓬ@ᐗூC௃C240X8+898

10=1920+898=2818(ᐗ)ᐳᓬ@2818ᐗ.26.(8ᑖ)ᵯᛞḄᙊ°ᛞ±Ḅ7²F30.³ᙠ⌕ᙠµḄᕜ·¸10.¹Ḅº°₝¼(᝞¾).(1)᝞ᙠ₝¼Ḅ᜜··ᙌÀ᪕ÂᙌÀ᪕ÂÃ.(2)₝¼Ḅ☢ÅᨵᜧூC௃C(1)3.14X2X(30+10),=6.28X40,=251.2(.)mᙌÀ᪕ÂÃ251.2..(2)3.14X[(30+10)2-3()2],=3.14X(402-302),=3.14X(1600-900),=3.14X700,=2198(9.)m₝¼Ḅ☢ÅF21989..27.(8ᑖ)Æ«ÇᑖÈ2᫑Ḅ)ÊË1+ᔣ34ÍÎ)ÊÏ8.Æᑖ;Ð65.Çᑖ;Ð70.ÑÒ5ᑖ;=)ÓÔÕ+⍗.᫑Ã.ூC௃C(65+70)X5+3=135X5+3=675+3=225(.).᫑ᨵ225.Ã.28.(8ᑖ)×ØÙ⌕ᙢÀÚÛÒÜÝ⍝ß12cᨴáß.³ᵫᵬஹ()ßâãäåß,

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ᔠ▭ᝅᫀজᐜᵫᵬஹᔠᨴᵫᵬᓫ!"#$ា&ᢥ()ᡂ.ঝᐜᵫᵬஹᔠ-ᨴᵫᓫ!".#$ា&ᢥ()ᡂ.1
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789:;ᔠ"<ᵨ>"?@7ḄABCDEFGᢣᢵ
IF⌱KLMᫀNூPQ௃P61
SX12Tm=l424244m=6^X12^=ln஻=8.Qᫀজ0ᔠU6ᜩᫀঝ0ᔠU8ᜩ.2
ᫀজ◤⌕YZ12X600+6X400=9600[ᐗᫀঝ◤⌕YZ400X12+600X8=9600[ᐗᓽMᫀᡠ◤YZ_`.ᵫaᫀজᔠU(bcd?@7ABceᡠTI⌱Kᫀজ.29.10ᑖgᵨ4ᙽij8ᔖlḄmnoᱏqᡂrmnᡈjnqᡂtnḄᕜjᔜwxyᔖlNூPQ௃P61gqᡂrmn᝞t

128ᔖmnḄijE8+8=166ᔖlgᕜj16X4=646ᔖlg62gqᡂrjn᝞t8ᔖ8ᔖjnḄjE4X8=326ᔖlgஹE8ᔖlᕜj632+8gX2=40X2=806ᔖlgQmnᕜjw64ᔖljnᕜjw80ᔖl.