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2014-08-18T17:17:01+07:00
2,5 ton = 2,5X10 = 25kuintal
18 kuintal = 18X10² = 1.800kg
20 kg = 20X10⁻³ = 0,02ton
500gr = 500X10⁻² = 5 ons
2 ons = 2X10² = 200gr
1 5 1