The 300 kilograms is equal to 300,000 grams.
One kilogram is equal to 1000 grams. Therefore, 33 kilograms is equal to 33 x 1000 = 33000 grams.
There are 1000 grams in one kilogram. Therefore, 7.4 grams is equal to 7.4/1000 = 0.0074 kilograms.
There are 1000 grams in one kilogram, therefore 4000 grams is equal to 4 kilograms.
There are 1000 grams in one kilogram. Therefore, 120 grams is equal to 120/1000 = 0.12 kilograms.
There are 1000 grams in one kilogram. Therefore, 234 grams is equal to 234/1000 = 0.234 kilograms.
There are 1000 grams in one kilogram. Therefore, 200 kilograms is equal to 200 x 1000 = 200000 grams.
There are 1000 grams in one kilogram. Therefore, 650 grams is equal to 650/1000 = 0.65 kilograms.
If one kilogram equals 1,000 grams then 50 kilograms would equal 50,000 grams.
There are 1000 grams in one kilogram. Therefore, 45 grams is equal to 45/1000 = 0.045 kilograms.
There are 1000 grams in one kilogram. Therefore, 4.5 grams is equal to 4.5/1000 = 0.0045 kilograms.
There are 1000 grams in one gram. Therefore, 2.3 kilograms is equal to 2.3 x 1000 = 2300 grams.