For following Exercises, write the value of each group of coins. To do so, it is usually easiest to start with the coin(s) of greatest value and end with the coin(s) of least value
1.

2. Name the different ways that coin(s) can have a value of $0.25 given that there are no pennies.
3. Laser beams can be used to measure the distance to the moon. One measurement showed the distance to the moon to be 256,435.235 miles. A later measurement showed that the distance is 256,436.012 miles. Find how much farther away the moon is in the second measurement as compared to the first.
4. Can the sum of two negative decimals ever be a positive decimal? Why or why not?