①-3,9,-27,81,-243,729,...②0,12,-24,84,-241,732,...③-1,3,-9,2
观察下面数字,①-3,9,-27,81,-243,729,……②0,12,-24,84,-240,732,……③-1,3
观察下面三组数:①-3,9,-27,81,-243,729···②0,12,-24,84,-240,732···
观察下面各行数①-3,9,-27,81,-243,729……②0,12,-24,84,-240,732……
标准检测卷观察下面三行数:-3,9,-27,81,-243,729……0,12,-24,84,-240,732……-1,
(1)3,9,27,81,243,729 ..(2) 1,7,25,79,241,727..(3) 1,3,9,27,8
观察下面的数:(1)-3,9,-27,81,-243,729.(2)0,12,-24,84,-243,729.(3)-1
观察下面三行数-3 ,9,-27,81,-243……:① 0,12,-24,84,-240……;② 3,-9,27,-8
1+3+9+27+81+243+729
观察下列个数:3、9、27、81、243、729…… 1、7、25、79、241、727…… 1、3、9、27、81、2
观察下面三行数:1:-3,9,-27,81,-243;2:0,12,-24,84,-240;3:-1,3,-9,27,-
观察下面三行数:1:-3,9,-27,81,-243;2:0,12,-24,84,-240;3:1,-3,9,-27,8
3,9,27,81,243,729,… 1,7,25,79,241,727,… 1,3,9,27,81,243,… 2.