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ISTRAŽI: Zbrajanje cijelih brojeva - temperaturna skala

Author:Aleksandra-Maria Vuković
Istraži
Postavi zelenu točku na vrijednost temperature zraka ujutro. Zatim pomakni crvenu točku za vrijednost promjene temperature - ako je temperatura porasla onda prema gore, a ako je pala onda prema dolje. Očitaj kolika je je bila temperatura zraka nakon promjene.
Ponovi / primijeni

1. Odredi predznak zbroja danih brojeva. a) 23 + (–22)

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b) 16 + (–27)

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c) –19 + (–27)

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d) 13 + 56

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e) –17 + 20

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f) –50 + 50

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g) 61 + (–61)

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h) –26 + 15

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2. Izračunaj vrijednost brojevnog izraza. a) 15 + (–2)

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b) 8 + (–12)

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c) –15 + (–9)

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d) –17 + 17

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e) –23 + 19

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f) 23 + (–23)

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g) 17 + 13

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h) –19 + 26

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