Fun Ideas to Helpyourchild with Maths

Year 5

Maths

Fun ideas to helpyourchild with maths

BytheendofYear5,mostchildrenshouldbeableto…

Multiplyanddivideanywholenumberup to10000by10or100. Knowwhatthedigitsinadecimalnumberstandfor,e.g.the6in

2.63standsfor6 tenthsand the3for3hundredths.

Roundnumberswith2decimalplaces to thenearestwhole number,e.g.9.79 roundsup to10,147.22 roundsdown to147.

Usedivision tofindafractionofanumber,e.g. findonefifthby dividingby 5.

Workoutin theirhead thedifferencebetween twonumberssuch as3994and9007.

Usepencilandpapertoaddandsubtractnumbers up to 4 digits, e.g.5792+8436,13912–5829.

Knowby heartall multiplication tablesup to12x 12 and related division facts e.g. 5 x 7 = 35 so 35 ÷ 5 = 7 and 35 ÷ 7 = 5.

Doublenumbersup to100in theirheads.

Usepencilandpaperto multiply anddivide numbers,

e.g.328x4,72x56,329÷6.

Drawand measurelines to thenearestmillimetre.

Workouttheperimeterandareaofa rectangle,e.g.the perimeterandareaofabookcovermeasuring25cmby20cm.

Solvewordproblemsandexplain theirmethod.

Funactivitiestodoathome

Howmuch?

♦ Whileshopping,pointoutanitem costingless than£1.

♦ Askyourchild toworkoutin their head thecostof3items.

♦ Askthemto guessfirst. Seehowclose theycome.

♦ Ifyouseeanyitemslabelled,for example,‘2for£3.50’,askthemto workoutthecostof1itemforyou, and toexplainhowtheygotthe answer.

Decimalnumberplates

♦ Eachchooseacarnumberplatewith threedigits.

P645 CJM

♦ Choosetwo ofthe digits, e.g. 4 and6. Makethe smallest andlargest numbersyoucan,eachwith1decimalplaces,e.g.4.6and6.4.

♦ Nowfind thedifferencebetween the twodecimalnumbers, e.g.6.4–4.6=1.8.

♦ Whoevermakes thebiggestdifferencescores10points.

♦ Thepersonwith the mostpointswins.

Playthegameagain,butthis timescore10pointsforthesmallest difference,or10pointsforthebiggesttotal.

Findingareasandperimeters

Perimeter=distancearound theedgeofashape

Areaofa rectangle=lengthxbreadth (width)

♦ Collect5or6usedenvelopesofdifferentsizes.

♦ Askyourchild toestimate theperimeterofeachone to thenearest centimetre.Write theestimateon theback.

♦ Nowmeasure.Write theestimatenextto the measurement.

♦ Howclosedidyourchildget?

♦ Nowestimate thenworkouttheareaofeachenvelope.

♦ Wereperimetersorareaseasiertoestimate?Why?

Youcoulddosomethingsimilarusinganoldnewspaper,e.g.

♦ Workoutwhichpagehas thebiggestareausedforphotographs.

♦ Chooseapageandworkoutthe totalareaofnewsstoriesor advertson thatpage.

Tables

Makea times-tablegridlike this.

♦ Shadeinall the tablesfacts thatyourchildknows,probablythe1s,

2s,3s,4s,5sand10s.

♦ Somefactsappeartwice,e.g.7x3and3x7,socrossoutone ofeach.

♦ Areyousurprisedhowfewfactsareleft?

♦ There mightonlybe10facts tolearn.So takeonefactadayand makeupasillyrhyme togethertohelpyourchild tolearnit,

e.g.ninesevensaresixty-three,let'shavelotsofchips fortea!

Telephonechallenges

♦ Challengeyourchild tofindnumbersin the telephonebook or a mobile phone where thedigitsaddup to42.

♦ Findas manyaspossiblein10 minutes.

♦ Onanotherday,seeiftheycanbeattheirprevious total.

Telephone:01264738281

Target 1000

♦ Rolladice6 times.

♦ Use thesixdigitsto make two three-digitnumbers.

♦ Add the twonumbers together.

♦ Howclose to1000canyouget?

Carnumbers

♦ Tryreadingacarnumberasa measurementincentimetres, thenconvertingitto metres,e.g.456cm,whichis4.56m,or 4mand56cm.

♦ Trythiswithcarnumbers thathavezerosin them,e.g. 307cm, whichis3.07mor3mand7cm;370cm,whichis3.7m,or3m and70cm.Theseareharder

Lineitup

Youneeda rulermarkedincentimetresand millimetres.

♦ Use the rulertodraw10differentstraightlinesonapieceof paper.

♦ Askyourchild toestimate thelengthofeachlineandwrite the estimateon theline.

♦ Nowgive themthe rulerandaskthemto measureeachline to thenearestmillimetre.

♦ Askthemtowrite the measurementnextto theestimate,and workoutthedifference.

♦ Adifferenceof5millimetresor lessscores10points.Adifference of1centimetreorlessscores5points.

♦ Howclose to100pointscansheget?

Guessmynumber

♦ Chooseanumberbetween0and1withonedecimalplace,e.g.

0.6.

♦ Challengeyourchild toaskyouquestions toguessyournumber.

You may only answer‘Yes’or‘No’.Forexample,hecouldask questionslike‘Isitless thanahalf?’

♦ Seeifhecanguessyournumberinfewerthan5questions.

♦ Nowletyourchildchoosea mysterynumberforyou toguess.

Extend thegamebychoosinganumberwithonedecimalplace between1and10,e.g.3.6.You mayneed morequestions!

Division

Forthisgameyouneeda1–100board (asnakesandladdersboardwilldo), adiceand20coinsorcounters.

♦ Take turns.

♦ Choosea two-digitnumber.Rolladice.Ifyou roll1,roll again.

♦ Ifyourtwo-digitnumberdividesexactlybythedicenumber, putacoinonyourchosen two-digitnumber.Otherwise,miss thatturn.

♦ Thefirsttoget10counterson theboardwins.