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①从“96”开始,每隔三个数写出一个数来,得到:96、100、104、108……请问,“1996”是这列数中的第几个数? ②从“50”开始每隔六个数写出一个数:50、57、64、71……请问,能不能写出“1996”这个数?若不能就说明理由;若能,这个数是数列中的第几个数? ③有一个四位数,它的个位数字是“6”,若把“6”移到最左边作千位数,原来的千位数、百位数和十位数分别作百位数、十位数和个位数。这样,新得到的四位数比原来的四位数大4203。原来的四位数是
① from “96”, every three numbers to write a number to get: 96,100,104,108 ...... Excuse me, “1996” is the number of the number of columns? ② From the “50” Start to write a number of every six numbers: 50,57,64,71 ... Excuse me, can you write down the number of “1996”? If not, explain the reasons; if it is, the number is the number of the series Number? ③ There is a four-digit number whose single digit is “6”. If you move “6” to the left to make a thousand digits, the original thousands, hundreds, Number, ten digits and single digits. In this way, the newly obtained four-digit number is 4203 greater than the original four-digit number. The original four digits are