观察下面3行数:2,-4,8,-16,...① -1,2,-4,8,...② 3,-3,9,-15,...③
观察下面3行数:2,-4,8,-16,...① -1,2,-4,8,...② 3,-3,9,-15,...③
观察下面3行数-1,2,-3,4,-5,6,… (1)-2,4,-6,8,-10,12,… (2)1,4,9,16,25
2,-4,8,-16,...① -1,2,-4,8.② 3,-3,9,-15,.③ 第①行数按什么规律排列 第②③行数与
观察下面3行数 1,4,9,16,25.0,3,8,15,24...4,7,12,19,28...求他们的规律还有关
观察下面两行数,2,4,8,16,32,64…1チ6ᄌ6ト1ツ5
观察下列3行数 -1,2,-3,4,-5...1,4,9,16,25...0,3,8,15,24...问:1.第一行按什
观察下列3行数 0 3 8 15 24① 2 5 10 17 26② 0 6 16 30 48③
找规律!观察下列3行数(1)-4,5,-6,7,-8,9,...(2)-8,10,-12,14,-16,18,...(3
观察下列一行数:1,-2,-3,4,-5,-6,7,-8,-9… 1.写出这行数的第100个数和第2011个数
观察下列三行数:0,3,8,15,24,…①2,5,10,17,26,…②0,6,16,30,48,…③(1)第①行数有
观察下列三组数:-1,2,-3,4,-5…… 1,4,9,16,25…… 0,3,8,15,24…… (1)第一行数按什
观察下列3行数①-3,9,-27,81… ②1,-3,9,-27… ③-2,10,-26,82… (1)第①行是按什么规