The digit whose place value is always the same regarless of its position or place in a given number is___.

The digit whose place value is always the same regardless of its position or place in a given number is___.

If the digit 1 is placed after a 2-digit number whose tens is t and ones digit is u, the new number is ______.

The place value of the digit 3 in the number 2356 is____.

In a two-digit number, the digit at the units place is double the digit in the tens place. The number exceeds the sum of its digits by 18. Find the number.

In a five digit number, the digit at the hundreds place is three fourth of the digit at ten thousands place and the digit at ten place is two third of the digit at hundreds place. The digit at tens place is square of the smallest prime number and the digit at thousands place is the largest at thousands place is the largest single digit prime number. If the digit at unit place is the largest single digit odd number, then the number is

In a two digit number , the digit in the unit place is twice of the digit in the tenth place . If the digits are reversed , the new number is 27 more than the given number . Find the number