What is the difference in mass between a nickel that weighs 4.8 and a nickel that weighs 4.868 ?

4.868

-4.8
-------------
0.068 which to one decimal place rounds to 0.1g.
Or round the 4.868 to 4.9 and subtract 4.8 to leave 0.1 g.

To find the difference in mass between the two nickels, subtract the weight of the first nickel from the weight of the second nickel:

4.868 g - 4.8 g = 0.068 g

Therefore, the difference in mass between the two nickels is 0.068 grams.

To find the difference in mass between the two nickels, you need to subtract the weight of one nickel from the weight of the other nickel.

First, write down the weight of the first nickel: 4.8 grams.

Next, write down the weight of the second nickel: 4.868 grams.

To find the difference in mass, subtract the weight of the first nickel from the weight of the second nickel:

4.868 grams - 4.8 grams = 0.068 grams.

Therefore, the difference in mass between the two nickels is 0.068 grams.