9,000
600 + 1000 = 1600
900 + 100 = 1000
You convert everything to grams, then you add. * To convert kg to grams, you multiply by 1000. * To convert mg to grams, you divide by 1000.
2 + 1300 = 1302
6400 + 3500 = 9900
13850
6000.......it's actually 5,100
4100
The sum is 1300
1303.5
1000 + 1000 - 1000 + 1000 = 2000