2kg razy 20% = 0,4 kg soli
licze na naj
2kg = 2000g
2000g * 20% =2000g * 0,2 = 400g = 0,4kg
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2kg razy 20% = 0,4 kg soli
licze na naj
2kg = 2000g
2000g * 20% =2000g * 0,2 = 400g = 0,4kg