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Slides - mitBUF.dk

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Eksempel<br />

• 21<br />

• - 19<br />

• = 18<br />

• Subtraktionsstrategier – trække fra, finde forskel.<br />

• Man ganger med 10 ved at sætte 0 bag på tallet<br />

• 25 x 10 25,0 x 10<br />

• Strategierne anvendes tilfældigt og ureflekteret.<br />

38

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