SVET MATEMATIČNIH ČUDES 4, Vaje za utrjevanje, 2. del

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Ra~une prepi{i v mre`o in jih izra~unaj.

121 · 4 222 · 4 233 · 2 122 · 4

400 · 2 101 · 5 303 · 3 444 · 2

Zavitek bonbonov stane 120 c. Koliko stanejo 3 zavitki?

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Prodajalec sadja je zlagal mandarine v zaboje. V vsakzaboj je zlo`il 112 sade`ev. Koliko sade`ev je zlo`il,~e je za prodajo pripravil 4 zaboje?

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V knji`nici so dobili nove knjige. Knji`ni~arka jih jerazporedila po policah. Na prvo polico je zlo`ila 22 knjigpravljic, na drugo prav toliko knjig povesti, na tretjo11 leksikonov, na ~etrto pa 11 slovarjev.Koliko novih knjig so dobili v knji`nico?

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Zapi{i vsa enomestna, dvomestna in trimestna {tevila, ki jih je mogo~e zapisati s {tevkami5, 7 in 8. Pri zapisu {tevila lahko posamezno {tevko uporabi{ samo enkrat.

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5.

6.

8.

7.

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OBDELAVA PODATKOV PRIKAZI

V preglednici je prikazano, koliko sadja je kdo kupil.

Prika`i s stolpci, koliko kg sadja so kupili posamezni kupci.

Legenda:

= 1 kg

Jo`ica Janez Helga France Marta

Koliko denarja so porabili za nakup?

Kdo je porabil najmanj denarja?

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1.Pomaran~e Banane Mandarine Jabolka Kivi

Jo`ica 3 kg 1 kg

Janez 2 kg 1 kg

Helga 1 kg 1 kg

France 1 kg 1 kg 2 kg

Marta 1 kg 2 kg

Ra~un Znesek

Jo`ica

Janez

Helga

France

Marta

120 c

90 c

130 c

90 c

170 c

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ARITMETIKA DELJENJE

Dopolni.

Pobarvaj like, v katerih so ra~uni pravilni.

Krajani so {oli poklonili 1000 €, da bi posodobili glasbeno u~ilnico, v kateri pridnovadi Orffova skupina.a) Najve~ koliko trianglov lahko kupijo?

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1.400

: 40 : 10 : 100 : 50

200

: 20 : 50 : 100 : 10

2.

400 : 100 = 40 1000 : 20 = 50

327– 116

24 180 : 20 = 9

3.

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b) Najve~ koliko parov pal~k lahko kupijo?

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c) Izpolni preglednico.

~) Glasbila uredi po ceni za en kos. Za~ni z najdra`jim.

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d) Manca je videla cenik glasbil in si zelo `eli boben. Koliko bankovcev po 10€ potrebuje?

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e) Vodstvo {ole se je odlo~ilo, da za ni`je razrede kupijo triangel, boben in par pal~k.S koliko bankovci za 100 € bodo pla~ali glasbila?

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Koliko glasbil za 1000 €?Glasbilo Cena Ra~un Odgovor

par pal~k 200 € 1000 : 200 = 5 5 parov

par ropotulj

par ~inel

triangel

boben

kragulj~ki

tamburin

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Nadaljuj zaporedji.

a) 1000, 2000, 3000, ______________________, ______________________, ______________________, ______________________, ______________________, ______________________

b) 9000, 8000, 7000, ______________________, ______________________, ______________________, ______________________, ______________________, ______________________

Zapi{i {tevila, ki manjkajo v zaporedjih.

a) 2000, 3000, ______________________, 5000, ______________________, 7000, 8000, ______________________

b) 10000, 9000, ______________________, 7000, ______________________, 5000, 4000, ______________________

Vstavi ustrezen znak (>, <, =).

300 3000 4000 4000 5000 500

5000 2000 700 700 10000 1000

8000 1000 6000 900 800 2000

700 7000 600 800 9000 9000

Zapi{i s {tevilko.

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Zapi{i s {tevilko.

sedem tiso~ ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ tri tiso~ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

dva tiso~ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ deset tiso~ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

pet tiso~ ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ devet tiso~ ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

{est tiso~ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ {tiri tiso~ ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

2.

3.

4.

5.

6.

1000

1000

1000 100

100

100

1000

10001000

1000

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ARITMETIKA [TEVILA DO DESET TISO^

Na razli~ne na~ine sestavi vsoto 5000. Uporabi{ lahko {tevila 500, 200 in 1000.Napi{i nekaj mo`nosti in ustrezne ra~une.

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Na {oli je 1200 u~encev, med njimi so plavalci in neplavalci. Plavalcev je za 1000 ve~ kotneplavalcev. Koliko je na tej {oli neplavalcev?

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Iz {tevk 5, 4, 3, 8 sestavi {est razli~nih {tirimestnih {tevil. Vsaka {tevka se v posameznem {tevilulahko pojavi samo enkrat.

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[tevila uredi po velikosti. Za~ni z najve~jim {tevilom.

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V ogradi so ovce in goske. @ivali imajo skupaj 35 glav in 94 nog.Koliko je gosk in koliko ovc?

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1.

8 · 500 + 5 · 200 = 5000

3.

4.

2.

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ARITMETIKA [TEVILA DO DESET TISO^

Pla~ati mora{ znesek 1000 €. Uporabi{ lahko bankovce za 500 €, 200 € in 100 €.Zapi{i nekaj na~inov, na katere lahko pla~a{ ta znesek.

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ARITMETIKA MATEMATI^NI PROBLEMI

V 3. razredu je 21 u~encev. V~eraj jih je nekaj manjkalo, tako da je bilo pri pouku samo18 u~encev. Koliko jih je bilo odsotnih?

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Odvil sem ~okolado in dal sestri 7 ko{~kov. Meni jih je ostalo enako {tevilo. Koliko ko{~kov jeimela ~okolada, ko sem jo odvil?

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V razredu je 31 stolov. Dvanajst jih ni zasedenih. Koliko stolov je zasedenih?

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Katero {tevilo mora{ od{teti od {tevila 67, da dobi{ {tevilo 23?

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V stolpnici je 857 stopnic. Miha se je odlo~il, da se po njih povzpne do vrha. Ves ~as je {telprehojene stopnice in ko se je ustavil, da si odpo~ije, je vedel, da ima do vrha {e 83 stopnic.Koliko stopnic je `e prehodil?

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Sestavi besedilno nalogo, ki ustreza ena~bi 78 – = 12.

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2.

3.

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6.

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Na neki {oli je 540 otrok. 273 se jih je odlo~ilo za {olsko malico, 230 pa za kosilo.Noben otrok ni naro~en na oba obroka.

Na malico ni naro~enih _____________________________________________________________________________________________________________________________________________ otrok.

Na kosilo ni naro~enih _____________________________________________________________________________________________________________________________________________ otrok.

Ne na malico in ne na kosilo ni naro~enih _____________________________________________________________________________________________________________________________________________ otrok.

Star{a sta naro~ila Roku, naj v katalogu izbere pohi{tvo, s katerim bi opremil svojo sobo.Porabiti je smel najve~ 1000 €. Pomagaj mu pri izbiri pohi{tva.Kako se lahko odlo~i? Poi{~i vsaj dve mo`nosti.

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3.

4.

231 €

244 €

188 € 240 €

195 € 195 € 244 €

270 €368 € 290 €

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Ustrezno pove`i.

Majhno mestno gledali{~e sprejme 285 gledalcev. V petek,soboto in nedeljo je blagajni~arka prodala vse vstopnice.Koliko ljudi si je ogledalo predstavo v vseh treh ve~erihskupaj?

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V prvi trgovini stane televizor 223 €, v drugi pa je enaktelevizor 6 € dra`ji.a) Koliko bi pla~al za tak televizor v drugi trgovini?

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b) Koliko ve~ zaslu`ijo v drugi trgovini, potem ko v vsakiod obeh prodajo 10 takih aparatov?

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Ob 18.45 je Tine poklical prijatelja Andreja. Njegovamama mu je povedala, da je Andrej od{el v kino, da se jefilmska predstava za~ela pred pol ure in da traja dve uri.Ob kateri uri se bo predstava kon~ala?

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5.

6.

7.

8.

315 · 375 · 8

208 · 3

171 · 4

237 · 3

125 · 5

945

684711

625624600

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ARITMETIKA MATEMATI^NI PROBLEMI

Oglej si cenik in re{i naloge. Ra~une pi{i na drugo stran. Na sliki poi{~i {tevila, ki se ujemajoz rezultati, in pobarvaj polja.

CENIK

@epno ra~unalo . . . . . . . 60 €

Namizna svetilka . . . . . . 55 €

Predal~nik . . . . . . . . . . . 43€

Luknja~ . . . . . . . . . . . . . 35€

Mobilni telefon . . . . . . . 75 €

DVD predvajalnik . . . . . . 69 €

Opti~na mi{ka . . . . . . . 100 €

a) Koliko stanejo 3 mobilni telefoni, 2 predal~nika in 3 luknja~i skupaj?

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b) Koliko stane 5 namiznih svetilk, 3 DVD predvajalniki in 5 opti~nih mi{k?

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c) Koliko porabimo, ~e kupimo 2 `epni ra~unali, 3 mobilne telefone in 2 predal~nika?

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~) Koliko denarja porabimo za 2 opti~ni mi{ki, 3 luknja~e, 4 namizne svetilke in 2 mobilna telefona?

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d) Koliko stanejo 4 `epna ra~unala, 3 mobilni telefoni, 2 predal~nika in 2 luknja~a?

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