Places in ones period are (when a number is represented in international system)
I am a 5 digit number. My tens digit is 2. My ones and hundreds digit is twice the tens digit. My thousands digit is one substracted from the product of the ones and tens digit. My ten thousands digit is the difference between the thousands and the tens digit. What number am 'I'?
Round off 945365 to the nearest tens, hundreds, thousands and ten thousands.