a two digit number is seven times the sum of its digits.if t

英语翻译The sum of the digits of a two-digit number is subtracte 英语翻译if the product of all digits of a six-digit number is 12 T is the ten digits of a two-digit positive integer a double-digit number plus nine times of its ones is 100.wha 英语意思：numbers in which the sum of its digits is a perfect squ 请问 find the number two-digit positive integer whose digits t eight times the sum of a number and its reciprocal results i 外国的数学题!I am a 2-digit number. the product of my 2 digits 24. 英语翻译A Niven number is a number such that the sum of its digi 英语翻译1.The sum of two numbers is 23.If the greater number is 英语翻译in a two-digit number,the units digit is greater than th which are 7 times as much as the sum of its two didits.是神马意思