ssat middle level 数学 1说课讲解.docx

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ssatmiddlelevel数学1说课讲解

 

ssatmiddlelevel数学1

Inthepracticequestions,fractionsmaybewrittenina“number–slash–number”format.

Forexample,thefraction“two-thirds”maybewrittenas2/3.

1.Whichofthefollowingisthenumber:

Seven-hundrednineandthirty-fourthousandths?

(A)709.34

(B)709.034

(C)709.0034

(D)7,009.34

(E)7,009.034

2.If76+D8=134,thenthemissingdigitDisequaltowhatnumber?

(A)2

(B)3

(C)4

(D)5

(E)6

3.If12/x=3/7,thenx=

(A)20

(B)21

(C)28

(D)29

(E)35

4.Jackranfor1/2hour.Hankranfor1/3hourmorethanJack.HowmanyhoursdidHankrun?

(A)3/4

(B)4/5

(C)5/6

(D)6/7

(E)7/8

5.AmyhasnmorebooksthanBob,andBobhas2lessbooksthanCathy.IfCathyhas5books,howmanybooksdoesAmyhave?

(A)n–3

(B)n+3

(C)n–7

(D)n+7

(E)n–10

6.Craigisatschool.Ifhewalks7milesnorth,then4mileseast,then7milessouth,howfarawaywillhebefromschool?

(A)19miles

(B)15miles

(C)11miles

(D)7miles

(E)4miles

7.Nisanevennumberbetween10and30.Nisalsoamultipleof7between20and40.WhichisN?

(A)14

(B)21

(C)28

(D)32

(E)35

8.Theperimeterofarectangleis62.Ifitswidthis13,thenitslengthis

(A)17

(B)18

(C)19

(D)20

(E)21

9.Amanisontheninthfloor.Hegoesuptwenty-onefloors,thendownadozenfloors,thenupsixteenfloors,thenupforty-seven

floors.Whatfloordoesthemanendupon?

(A)Sixty-ninthfloor

(B)Seventy-secondfloor

(C)Seventy-fifthfloor

(D)Seventy-eighthfloor

(E)Eighty-firstfloor

10.Whichnumberisthesmallest?

(A)0

(B)–10

(C)1

(D)100

(E)–1

11.Thenextnumberintheseries1,2,4,7,11,16is

(A)20

(B)21

(C)22

(D)23

(E)24

12.Chaseis9yearsold.AmberistwiceasoldasChase.KristynisthreeyearsyoungerthanChase.WhatisthecombinedageofAmber

andKristyn?

(A)16

(B)18

(C)20

(D)22

(E)24

13.Camronis50inchestall.Juliais5½inchesshorterthanCamron.HowmanyinchestallisJulia?

(A)43½

(B)44½

(C)45½

(D)49½

(E)55½

14.1/10=

(A)0.001

(B)0.01

(C)0.1

(D)1

(E)10

15.AllofthefollowingaretrueEXCEPT

(A)4/5>1/2

(B)2/3<3/4

(C)5/6>1/3

(D)1/7<1/6

(E)3/10>2/5

16.Ifthepatternbelowcontinuestotheright,whatwillthe25thwordbe?

left,up,right,down,left,up,right,down,…

(A)left

(B)right

(C)up

(D)down

(E)alloftheabove

17.Christakesoutthetrashevery2nddayandwashesthedishesevery3rdday.LastThursdayhedidbothchores.Onwhatdayofthe

weekwillhebedoingbothchoresagain?

(A)Sunday

(B)Saturday

(C)Monday

(D)Wednesday

(E)Friday

18.If38+38+38+38+38+38=[]×6,then[]isequalto

(A)19

(B)24

(C)28

(D)34

(E)38

19.Asquarehasaperimeterof40.Whatisthelengthofoneofitssides?

(A)8

(B)10

(C)12

(D)16

(E)20

20.Allofthefollowingfractionsareequalto1/3EXCEPT

(A)2/6

(B)10/30

(C)4/12

(D)7/20

(E)3/9

21.Whatisthedifferencebetween50%of20and100%of6?

(A)2

(B)3

(C)4

(D)5

(E)6

22.IfA=36,then7morethanA÷4isequalto

(A)11

(B)15

(C)16

(D)20

(E)21

23.Mrs.Taylorwantstogive2candybarstoeachofher32students.Thereare7candybarsineachpackage.Howmanypackages

mustshebuy?

(A)9

(B)10

(C)11

(D)12

(E)13

24.Twenty-fourpeoplearetobedividedintoteams,eachhavingthesamenumberofpeople.WhichofthefollowingCANNOTbethe

numberofteams?

(A)4

(B)6

(C)8

(D)10

(E)12

25.Itisequallylikelytolandonanyofthe9squaresnumbered1through9onagameboard.Whatistheprobabilityoflandingonan

evennumberoramultipleof3?

(A)1outof3

(B)4outof9

(C)5outof9

(D)2outof3

(E)7outof9

26.Whichofthefollowingistrue?

(A)20÷4=0.5

(B)0.4×0.5=2

(C)20÷0.4=50

(D)0.5×4=20

(E)20÷5=0.4

27.Whenanumberisdividedby6,thequotientis7andtheremainderis4.Ifthesamenumberisdividedby9,theremainderis

(A)1

(B)2

(C)3

(D)4

(E)5

28.Ifa÷3=b÷4=2,whatisthevalueofa+b?

(A)13

(B)14

(C)15

(D)16

(E)17

29.Iftwointerioranglesofatrianglehavemeasuresof50degreesand60degrees,whatisthemeasureofthethirdangleofthetriangle,

indegrees?

(A)50

(B)56

(C)60

(D)70

(E)110

30.Tomhas7booksandJanehas25.HowmanybooksmustJanegiveTomifeachistohavethesamenumber?

(A)7

(B)8

(C)9

(D)12

(E)18

31.If23–[]=56÷8,then[]equals

(A)1

(B)2

(C)4

(D)8

(E)16

32.Asailoreatsoneorangeevery6hours.Howmanyorangeswillheeatin4days?

(A)8

(B)10

(C)12

(D)16

(E)24

33.(12+10+8)÷(6+5+4)=

(A)1

(B)2

(C)3

(D)4

(E)5

34.IfNisanevennumber,whichofthefollowingisanoddnumber?

(A)N+1

(B)N+2

(C)N+4

(D)2×N

(E)N×3

35.Howmanysecondsarethereinone-tenthofaminute?

(A)12seconds

(B)6seconds

(C)10seconds

(D)8seconds

(E)15seconds

36.Thetemperatureofthreedifferentcitiesis60degrees,35degreesand46degrees.Whatistheaverage(mean)temperatureforthese

threecities?

(A)43degrees

(B)44degrees

(C)45degrees

(D)46degrees

(E)47degrees

37.Arectangularbackyardis20meterslongand10meterswide.If90squaremetersiscoveredwithgrass,whatpercentofthe

backyardiscoveredwithgrass?

(A)29%

(B)35%

(C)40%

(D)45%

(E)90%

38.Fouroutof10dinersinarestaurantareinthesmokingsection.Theratioofdinersinthesmokingsectiontodinersinthenon-

smokingsectionis

(A)2to3

(B)2to5

(C)3to5

(D)3to2

(E)1to3

39.Whatisthegreatestnumberofsquares,eachmeasuring2cmby2cm,thatcanbecutfroman8cmby6cmrectangle?

(A)6

(B)8

(C)12

(D)16

(E)24

40.FivepercentoftheguestsataHalloweenpartyweredressedasghosts.Iftherewere6ghostsattheparty,howmanyguestswere

attheparty?

(A)60

(B)100

(C)120

(D)140

(E)150

ForQuestions41and42,refertothefollowingdefinition.

y@z=(y×z)–(y+z)

41.6@8=

(A)24

(B)34

(C)40

(D)44

(E)50

42.IfN@5=3,thenN=

(A)2

(B)3

(C)4

(D)5

(E)6

43.If4×P=17+3,thenP=

(A)3

(B)4

(C)5

(D)6

(E)7

44.Allofthefollowingarefactorsof5×6EXCEPT

(A)1

(B)2

(C)3

(D)4

(E)5

45.Intheproblemsbelow,howmuchmustbeaddedtothesmalleranswertomakeitequaltothelargeranswer?

67×8=

498÷6=

(A)99

(B)180

(C)271

(D)362

(E)453

46.Whichofthefollowingisequalto0.5×10?

(A)1/4oftwenty

(B)1/2offorty

(C)1/3ofthirty

(D)1/2offifty

(E)10times5

47.Whichofthefollowingisafactorof20andamultipleof2?

(A)1

(B)5

(C)10

(D)12

(E)15

48.Inazoo,3outofevery5monkeysarebrown.Ifthereare40monkeysatthezoo,howmanyofthemarebrown?

(A)21

(B)22

(C)24

(D)26

(E)28

49.The“8”inthenumber18,111hasavaluehowmanytimesthevalueofthe“8”inthenumber11,181?

(A)1

(B)10

(C)100

(D)1,000

(E)10,000

50.Theproductoftwowholenumbersis6.Theirsumcouldbe

(A)3

(B)5

(C)6

(D)8

(E)10

51.Theareaofthesquareis36.Whatisthesumofthelengthsoftwosidesofthesquare?

(A)12

(B)14

(C)16

(D)18

(E)20

52.HowmanynumbersbelonginSet1andSet2?

Set1:

{oddwholenumbers}

Set2:

{numberslessthan10}

(A)1

(B)2

(C)3

(D)4

(E)5

53.Stephaniehas30%moremoneythanMatthew.IfMatthewhas$40,howmuchmoneydoesStephaniehave?

(A)$50

(B)$52

(C)$54

(D)$56

(E)$58

54.Forty-eightplayersdividedthemselvesintoteams.Howmanymoreteamsof3canbemadethanteamsof4?

(A)4

(B)5

(C)6

(D)7

(E)8

55.SheilabeginsaprojectinMarch.Iftheprojectends15monthslater,duringwhichmonthdoestheprojectend?

(A)July

(B)May

(C)August

(D)June

(E)April

56.Kyleboughtfourpizzasofthesamepricewitha$20bill.Ifhegot$8inchange,howmuchdidonepizzacost?

(A)$2

(B)$3

(C)$4

(D)$5

(E)$6

57.If300+[]+60=940,then[]=

(A)460

(B)480

(C)560

(D)580

(E)620

58.Thedifferencebetween4,991and1,507isclosestto

(A)2,500

(B)3,000

(C)3,500

(D)4,000

(E)4,500

59.Allthesidesinapolygonareofequallengthanditsperimeteris64.Whatisthelengthofoneside?

(A)8

(B)9

(C)10

(D)11

(E)12

60.Ofthefollowing,whichisbetween1/2and3/4?

(A)0.4

(B)0.5

(C)0.6

(D)0.8

(E)0.9

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