Decimal Comparison: Finding Numbers Less Than 0.81

In order to determine which answer is correct, let's compare the answers and find out which one is less than 0.81:

Let's observe the answers:

0.801 - By adding 0 to our number we are able to easily compare 0.810 and 0.801. Given that the hundredths digit is 0 and 0 is less than 1, this is the correct answer.

0.81 - Since both numbers are equal to each other, this is not the correct answer.

0.82 - Due to the fact that the hundredths digit is 2 and 2 is greater than 1, this is not the correct answer.

0.822 - We'll add 0 to our number and compare 0.810 and 0.822. Given that the hundredths digit is 2 and 2 is greater than 1, this is not the correct answer.