0,12,-24,84,-240
0,12,-24,84,-240
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……
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
观察下面数字,①-3,9,-27,81,-243,729,……②0,12,-24,84,-240,732,……③-1,3
观察下面三行数-3 ,9,-27,81,-243……:① 0,12,-24,84,-240……;② 3,-9,27,-8
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,
把30*8-240,240/12=20,72+12=84列成综合算式
观察下面的数:(1)-3,9,-27,81,-243,729.(2)0,12,-24,84,-243,729.(3)-1
84/24*12/21用简便方法怎么计算
15和24,17和18,84和12,39和52,28和84,24和36,24 36 和42 ,4 6 和12的最小公倍数