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2014-07-03T18:25:13+03:00
A)2kg+1500g+200g= 2kg+1700g= 2000g+1700g= 3700g

b)40kg +500kg=540kg

c)439g+540g-20g= 979g-20g= 959g

d)250hg+500dag=250hg+50hg=300hg
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