If one piece of metal weighed 2700 grams and another piece of metal weighed 3200 grams, how much heavier was the second piece than the first piece in kilograms? Show how you found the please.
convert both to kilograms
1st metal - 2700 g / 1000 = 2.7 kg
2nd metal - 3200 g / 1000 = 3.2 kg
difference b/w 2nd and 1st = 3.2 kg - 2.7 kg = 0.5 kg
