| 46244 | How many 4 digit number contain number 2 | Medium | |
| 46256 | What is the tens digit of 6^19 | Medium | |
| 46394 | How many different three-digit multiples of 5 can be composed of digits… | Medium | |
| 46609 | How many digits will be there to the right of the decimal… | Medium | |
| 46622 | How many five-digit numbers are there, if the two leftmost digits are… | Medium | |
| 46872 | How many integers between 324,700 and 375,600 have tens digit 1 and… | Medium | |
| 46972 | Will must choose a 3-character computer password, consisting of 2 letter from… | Medium | |
| 46988 | 11 a3 +4b ___ 65 If a and b represent positive single… | Medium | |
| 47046 | In State X, all vehicle license plates have 3 letters from the… | Medium | |
| 47248 | If a and b are positive integers and x = 4^a and… | Medium | |
| 47361 | A warehouse is labeling computer inventory with 4-digit codes | Medium | |
| 47454 | How many digits are in (8×10^8)(10×10^10) | Medium | |
| 47464 | What is the tens digit of 36^10 | Medium | |
| 47470 | A local bank that has 23 branches uses a two-digit code to… | Medium | |
| 47548 | If a and b are positive integers and x = 9^a and… | Medium | |
| 47574 | The total number of digits used in numbering the pages of a… | Medium | |
| 47731 | The difference between a two-digit number and the number after interchanging the… | Medium | |
| 47793 | In how many no | Medium | |
| 47858 | How many pages the book have, if total 297 digits are used… | Medium | |
| 47993 | How many digits 2^200 has | Medium | |
| 48014 | If all of the telephone extensions in a certain company must be… | Medium | |
| 48088 | The digital sum of a number is the sum of its digits | Medium | |
| 48110 | a is the hundreds digit of the three digit integer x, b… | Medium | |
| 48158 | If the tens digit x and the units digit y of a… | Medium | |
| 48160 | if log 3 = 0.47712, the number of digits in 3128 is | Medium | |
| 48309 | What is the sum of the digits of integer k, if k… | Medium | |
| 48515 | If the tens digit x and the units digit y of a… | Medium | |
| 48621 | How many integers between 324,805 and 458,705 have tens digit 1 and… | Medium | |
| 48694 | If the tens digit of positive integer x is 3 and the… | Medium | |
| 48809 | Consider a Number 3.1n2 n represent the hundredths digit in the number… | Medium | |
| 48923 | What is the units digit of the expression 14^7−16^4 | Medium | |
| 49095 | Find the unit's digit in 264^102+264^103 | Medium | |
| 49233 | In State X, all vehicle license plates have 2 letters from the… | Medium | |
| 49303 | Find the unit's digit in 264 ^102+264^103 | Medium | |
| 49606 | The sum of digits of a two digit number is 8,The difference… | Medium | |
| 49610 | What are the last two digits of (301*401*503*604*646*547*448*349)^2 | Medium | |
| 49712 | How many different three-digit multiples of 5 can be composed of digits… | Medium | |
| 49815 | How many times will the digit 3 be written when listing the… | Medium | |
| 50040 | If k is the sum of the digits of integer m, and… | Medium | |
| 50648 | What is the unit’s digit of 213 *212*347*468*778 | Medium | |
| 50692 | A palindrome is a number that reads the same forward and backward… | Medium | |
| 50724 | If each of 3 digit code is formed of integers from 1… | Medium | |
| 50732 | What is the sum of all 3 digit positive integers that can… | Medium | |
| 51013 | The units digit of (10)^(87) + (93)^(46) is | Medium | |
| 51071 | A local bank that has 8 branches uses a two-digit code to… | Medium | |
| 51276 | x, a, z, and b are single digit positive integers | Medium | |
| 51280 | If 225/999=0.225, what is the 81st digit to the right of the… | Medium | |
| 51373 | The difference between a 4-digit number and the number formed by reversing… | Medium | |
| 51621 | If (10^4 * 3.456789)^11 is written as a single term, how many… | Medium | |
| 51716 | If log1087.5 = 1.9421, then the number of digits in (875)10 is | Medium | |