Roger is curious to know the total weight of all four sandwich fillings he bought. He weighs the fillings twice, once using ounces and once using grams. If 16 ounces = 1 pound and 1,000 grams = 1 kilogram, will the total weight of the sandwich fillings be a greater number of ounces or a great number of grams? Explain your answer.

The total weight of the sandwich fillings will be a greater number of grams. This is because 1 pound is equal to 16 ounces, but 1 kilogram is equal to 1,000 grams. Therefore, 1 pound is equal to 453.592 grams, which is more than 16 ounces. Therefore, the total weight of the sandwich fillings will be a greater number of grams.