2014年7月14日 - Find and list all four-digit numbers in decimal notation that have the property that the sum of its four digits equals the sum of its digits...
2017年2月18日 - Specialized Four-Digit Numbers each Find and list all four-digit numbers in decimal notation that have the property that the sum of its four...
2012年11月16日 - Find and list all four-digit numbers in decimal notation that have the property that the sum of its four digits equals the sum of its digits...