P5 Maths 新加坡 小学5年级 数学 练习 英文版.docx

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?

_______________________________________________________________________________（）

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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