 |  Number Play 20 Flashcards |  Start |
 | A 5-digit palindrome must have its first and last digits as ___. |  Card: 1 / 20 |
| Same digit
| Card: 2 / 20 |
| True or False: The number 495 is the Kaprekar constant for 3-digit numbers. | Card: 3 / 20 |
| True
| Card: 4 / 20 |
| Fill in the blank: The digit '7' appears ___ times between 1 and 1000. | Card: 5 / 20 |
| 300  | Card: 6 / 20 |
| What is the total number of 2-digit numbers? | Card: 7 / 20 |
| 90
| Card: 8 / 20 |
| Fill in the blank: A supercell is a number that is larger than all of its ___ numbers. | Card: 9 / 20 |
| Neighboring  | Card: 10 / 20 |
|  Unlock all Flashcards with EduRev Infinity Plan Starting from @ ₹99 only | |
| If you start with the number 34 and reverse it to get 43, what is the result when you add them together? | Card: 11 / 20 |
|
| Card: 12 / 20 |
| True or False: The number 8 is a palindromic number. | Card: 13 / 20 |
| False | Card: 14 / 20 |
| What is the result of subtracting 24,547 from 48,952? | Card: 15 / 20 |
| 24,405 | Card: 16 / 20 |
| Fill in the blank: The total number of 3-digit numbers is ___. | Card: 17 / 20 |
| 900 | Card: 18 / 20 |
| What is the total sum of 40 and 50 when there are 19 occurrences of 40 and 6 occurrences of 50? | Card: 19 / 20 |
| 1060 | Card: 20 / 20 |
| Completed! Keep practicing to master all of them. |  Restart |
