P5 Maths 新加坡 小学5年级 数学 练习 英文版.docx
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P5Maths新加坡小学5年级数学练习英文版
CHAPTER1WHOLENUMBERS
Numbernotationandplacevaluesupto10million
Approximationandestimation
Multiplicationanddivisionofnumbersupto4digitsbya2-digitwholenumber
Orderofoperations
1.Roundoff69570kmtothenearest1000km.
2.Roundoff7534089totheneatestthousand.
3.Aschool’spopulationis2904.Roundoffthisnumbertothenearestthousand.
4.Thevalueofthedigit8in980036is___________________________.
5.Whatisthesumofthefourthmultipleof8andthesixthmultipleof4?
6.Whatis100tenslessthan1million?
7.Whatis90hundredsmorethan1million?
8.Howmanytensaretherein48200?
9.Thereare___________________hundredsin1million.
10.Thevalueofthedigit8in487543is8x_________________________.
11.Writeninemillion,sixhundredandseventhousandandeighty-fourinfigures.
12.Writefivehundredandseventhousandandthirty-threeinnumerals.
13.Evaluate(Solve)507x28.
14.
Theproductoftwonumbersis9570.Ifthesmallernumberis58,whatisthebiggernumber?
15.
Thesumoftwonumbersis180.Thedifferencebetweenthetwonumbersis26.Findthelargernumber.
16.Findthevalueof85+10x(80–60)÷4.
17.Findthevalueof42+(139–19)÷6x2.
18.162x15=162x10+()Whatisthemissingnumberinthebox?
19.Whatistheremainderwhen2020isdividedby8?
20.
WhenSarahopensabook,thesumofthefacingpagenumbersis273.Whatisthesmallerpagenumber?
21.
RoyandLinhadthesameamountofmoney.WhenhespentfourtimesasmuchasLin,hehad$22leftwhileshehad$49left.HowmuchdidLinhaveatfirst?
22.Thereare____________tensin1million.
23.Thevalueof9in129300is___________________________.
24.Write1489311inwords:
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CHAPTER2MONEY,MEASURES&MENSURATION
Conversionofunitsofmeasureinvolvingdecimalsandfractions
Volumeofacubeandacuboid
Areaofatriangle
1.Awoodenblockmeasures10cmby8cmby2.5cm.If4suchwoodenblocksarepackedexactlyintoarectangularbox,whatisthecapacityofthebox?
2.Theareaofafloorcoveredinsquaretilesif1250cm2.Thelengthofeachsquaretileis5cm.Howmanysquaretilesaretherecoveringthefloor?
3.Apapayaisasheavyastwoorangesofequalmass.Ifthemassofeachorangeis160g,findthemassof3suchpapayas.
CHAPTER3STATISTICS
Linegraphs(Reading,interpretingandsolvingproblems)
CHAPTER4GEOMETRY
Anglesonastraightline,anglesatapoint,verticallyoppositeangles
8-pointcompass
Propertiesofaparallelogram,rhombus,trapezium,andtriangle
Geometricalconstruction:
Drawasquare,rectangle,parallelogram,rhombusandtrianglefromgivendimensions
Tessellation
CHAPTER5FRACTIONS
Additionandsubtractionsofmixednumbersandunlikefractions
Productoffractions
Conceptoffractionasdivision
Divisionofaproperfractionbyawholenumber
1.Whatisof1h8min?
_______________________
2.Expressdayinhours._______________________
3.Thereare18applesand12orangesinabasket.Whatfractionofthefruitsareoranges?
___________________
4.Howmanyhoursisofaday?
________________________
5.Thereare__________sixthsin.
6.Mr.Tanboughtsometables.ofthemwerered.Theremaining33tableswerewhite.Howmanytablesdidhebuyaltogether?
Ans:
___________________________
7.Carlhad8½mofrope.Hecutout3piecesofropesmeasuring1¼meach.Findthelengthoftheropeleft.
Ans:
____________________________
8.ofanumberis36.Whatisofthenumber?
________________________
9.ofthepeopleataconcertwerewomenandofthemwerechildren.Iftherewere300men,howmanywomenwerethereattheconcert?
Ans:
__________________________
10.27kgofricearesharedequallyamong7people.Howmuchricedoeseachpersonget?
Leaveyouranswerinitssimplestform.
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11.Express1390masafractionof2km.
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12.Apieceofwiremlongiscutinto6equalpieces.Amyused3piecestotiesomepresents.Whatfractionofthewiredidsheusealtogether?
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13.Findthevalueof2+1.
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14.Benwastoldtoguessanumber.Heguessedthenumbertobe8.Hisguessis¼oftheactualnumber.Whatistheactualnumber?
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15.10girlsreceived¼kgofstrawberrieseach.Whatisthetotalweightofstrawberriesinkg?
(Expressyouranswerinitssimplestform)
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16.Henrybought60mofribbon.Hegaveaway¾oftheribbontoKelly.Howmanymetresoftheribbondidhegiveaway?
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17.Balagaveofhisstampstohisbrotherandoftheremaindertohissister.Hehad10stampsleft.Howmanystampsdidhehaveatfirst?
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18.Arabbitweighskg.Ahamsterisofthemassoftherabbit.Whatisthetotalmassofthetwoanimals?
(Expressyouranswerasamixednumberinitssimplestform.)
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19.Apairofjeanscost3timesasmuchasaskirt.Brendaspentofhermoneyonsomeskirtsandhalfofherremainingmoneyonapairofjeans.Howmanyskirtsdidshebuy?
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CHAPTER6DECIMALS
Multiplicationupto2decimalplacesbya2-digitwholenumber
Multiplicationanddivisionupto3decimalplacesbytens,hundreds,thousands
1.Zafranpaid$243for90markers.Ifthepriceofeachmarkerdecreasedby$0.60,howmanymoremarkerscouldhebuywiththemoneyhehad?
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2.Roundoff9.837to1decimalplace.-----------------------------------------------------------------------------()
3.Roundoff202.028to2decimalplace.--------------------------------------------------------------------------()
4.Roundoff29.192to2decimalplace.----------------------------------------------------------------------------()
5.3ones,50hundredthsand2thousandthsis__________________________.
6.10tens,9hundredthsand7thousandthsis__________________________.
7.Rayfinished2/3ofhisMathhomework.Whatpercentageofhishomeworkdidhefinish?
Giveyouranswerroundedoffto2decimalplaces.
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8.Ineverylitreofhoneywaterjuice,thereis200mlofhoneysyrup.Therestofthejuiceismadeupofwater.Howmuchwaterwilltherebein3.5litresofhoneywaterjuice?
Leaveyouranswerinlitres.
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CHAPTER7AVERAGE,RATE&SPEED
Average
Rate
1.Joycecanwrite28wordsin2minutes.Atthisrate,howmanywordscanshewritein8minutes?
CHAPTER8RATIO&PROPORTION
1.():
6=28:
42.Fillinthemissingnumberinthebracket.
2.Thereare30buttonsinabox.10buttonsareblackandtherestarewhite.Whatistheratiooftheblackbuttonstothewhitebuttons?
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3.Linasaves$53amonth.Howmuchwillshesavein2.5years?
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4.Thereare48pensand72pencilsinacontainer.Whatistheratioofthenumberofpencilstothenumberofpens?
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5.ThemarksMayandBrendascoredinanChinesetestareintheratioof3:
5.IfMayhas18markslessthanBrenda,howmanymarksdidMayscore?
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6.Thereare800menandwomenataparty.300ofthemarewomen.Whatistheratioofthenumberofmentothenumberofwomenattheparty?
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7.Theratioofthenumberofteacherstopupilsataschoolis1:
9.Ifthereare108pupils,howmanyteachersarethere?
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8.Apieceofwireof160cmlongwascutinto2piecesintheratioof6:
2.Theshorterpiecewasbenttoformasquare.Whatisthelengthofthesquare?
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9.TheratioofTina’smasstoJoyce’smassis4:
3.IfTina’smassdecreasedby6kgandJoyce’smassisincreasedby1kg,TinawillhavethesamemassasJoyce.WhatisJoyce’soriginalmass?
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