Final answer:
To order the given numbers from greatest to least, start by arranging them in descending order and placing the greatest number first. Then, place the next greatest number to the right of the first number, and continue this pattern until all the numbers are arranged from greatest to least.
Step-by-step explanation:
- Rearrange the numbers in descending order: 5, 1.25, -2, -4.5.
- The greatest number is 5, so it is placed on the left.
- The next greatest number is 1.25, so it is placed next to 5, on the right.
- Then comes -2, which is placed on the right of 1.25, and finally, -4.5 is placed on the right of -2.