pre-algebra-final.美国college入学代数考试原件(含详细讲解)

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1、Pre-AlgebraTopicsCOMPASSReview-revisedSummer2013YouwillbeallowedtouseacalculatorontheCOMPASStest.Acceptablecalculatorsarebasiccalculators,scientificcalculators,andapprovedgraphingcalculators.Formoreinformation,seetheJCCCTestingServiceswebsiteathttp://www.jccc.edu/testing/orcall913-469-4439.W

2、orkouttheproblemswithpencilandpaperandselectthecorrectanswers.1.Simplify:22+(-8)+32–(-12)+8a.–2b.54c.28d.66e.45412.Compute:585153728a.b.c.d.e.1310404040533.Divide:714151331a.b.3c.d.1e.2683107727344.Simplify:5102151391116a.1b.1c.1d.0e.1351060455.Ablousethatsoldfor$59wasreduced30%.After6m

3、onthsitwasraised30%.Whatwasthelastpriceoftheblouse?a.$59b.$53.69c.$41.30d.$17.7e.$30.096.Simplify:42634a.12b.36c.7d.40e.4843327.Simplify:1351163a.b.9c.d.e.048848.Johnpays$70foranewcoat,whichis35%oftheoriginalcost.Whatwastheoriginalcost?a.$245b.$105c.$200d.$210e.$94.509.Aclothingstorepur

4、chaseddressesfor$70.00.Thedressesweremarkedup50%andlaterreduced30%.Comparedtotheoriginalcost,whatistheoverall%change?a.20%b.5%c.15%d.30%e.35%110.Theamountforfoodatalocalrestaurantis$32.45.Iftaxis6%1,whatisthetotalbillwithoutthetip?2a.$21.09b.$53.54c.$32.52d.$2.11e.$34.5611.Ifthreepoundsofapp

5、lescost$1.80,whatisthecostof12pounds?a.$21.60b.$15.40c.$7.20d.$12.60e.$5.4012.Samboughtthirtybooksfromabookdealerfor$2.00each,andasapromotion,thedealergavehimfivefreecopies.Samthensoldallthebookshegotfromthedealerfor$5.00each.WhatwastheprofitSammade?a.$3.00b.$105c.$115d.$90e.$17513.Completet

6、hefollowing:4320min=_______________daysa.3daysb.6daysc.12daysd.18dayse.5days114.Howmanyyardsofmaterialremainfroma30-yardlengthaftertwopieces,each2yardslong,andfourpieces,21each3yardslong,areremoved?431a.5yardsb.12yardsc.12yardsd.24yardse.18yards4415.Benismakingwoodentoysforanartsandcraftssal

7、e.EachtoycostsBen$1.80tomake.Ifhesellsthetoysfor$3.00each,howmanywillhehavetoselltomakeaprofitof$36.00?a.$1.20b.12c.20d.30e.4016.Find50%of80%of1000.a.300b.400c.1300d.40e.3017.ThreepointsA,B,Clieonastraightline.IfBisequidistantfromAandC,writetherati