Answer:
60?
Step-by-step explanation:
the relationship between 5.34 x 10^5 and 5.34 x 10^-2

5.34 * 10^-2 , for exponent -2 we move the decimal point 2 places to the left

Now we compare 534000 and 0.0534
0.0534 is 10,000,000 times less than 534000
Or we can say 534000 is 10,000,000 times greater than 0.0534
is 10,000,000 times greater than 
Answer:
It helps you know if the answer is reasonable because when you do the work and get your answer, you can check if it is close to your estimate, and if it is, it is most likely correct. On the other hand if it is not close to the estimate it is most likely wrong, unless you estimated incorrectly.
Step-by-step explanation: