To round a number to a particular digit, look at the digit immediately to the right of your target, in this case, the hundredths place. If that digit is 4 or lower, zero it and everything to the right of it out. If that digit is 5 or higher, increase the target digit by one and zero everything to the right of it out. If your target digit is a 9, increasing it will turn it to zero and increase the digit to the left of it by one.
74.00
The number 90 is already rounded to the nearest ten.
85
412830
The number 387,210 rounded to the nearest ten thousand is 390,000.
74.00
The number 1350 is already rounded to the nearest ten.
The number 90 is already rounded to the nearest ten.
Ten to the nearest ten.
To the nearest ten: 860 To the nearest hundred: 900
The number is already rounded to the nearest ten.
85
412830
When you round a single number to the nearest ten, you ALWAYS go to 0.
6400
Rounded to the nearest ten, 361 is approximately equal to 360.
"http://wiki.answers.com/Q/I_am_a_number_if_you_round_the_number_of_days_in_october_to_the_nearest_ten_and_round_the_number_of_days_in_february_to_the_nearest_ten_i_am_half_of_the_product_of_those_two_numbers_what_am_i"