Day 1 Weight of Baby Panda = 100 grams
Day 52 (after 51 days) Weight of Baby Panda = 2.17 kg
To determine the weight increase of our baby panda, we have to convert first the units from kg to grams.

Please know that 1kg = 1000 grams. Therefore, 2.17 kg is equal to:

So now, the weight of our baby panda after 51 days is 2170 grams. To determine weight increase, we will subtract 100 grams from 2170 grams.

Therefore, the panda cub gained 2,070 grams after 51 days or 2.07kg.