Final answer:
To write these numbers in order of size, start with the smallest number which is 67.2 x 10- and arrange the numbers in ascending order of their exponents.
Step-by-step explanation:
- 67.2 x 10-
- 672 x 10
- 6.72 x 103
To write these numbers in order of size, we start with the smallest number. The first number, 67.2 x 10-, is the smallest as it has a negative exponent. The second number, 672 x 10, is larger than the first number but smaller than the third number. Finally, the third number, 6.72 x 103, is the largest as it has the largest exponent.
Learn more about Ordering numbers in scientific notation