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Avrunda till heltal

När man avrundar decimaltal till heltal tittar man på tiondelssiffrans värde (talet precis efter decimalen). Är tiondelssiffran 0,1,2,3 eller 4 behåller man entalssiffran som den står. Är tiondelssiffran 5,6,7,8 eller 9 avrundas entalssiffran uppåt.

Tal Tiondelssiffra
126.31 3 126
421.89 8 422

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