1,1,8,16,7,21,4,16,2,( )
1,1,8,16,7,21,4,16,2,( )这个数列怎么解?
8/3×(1/3-8/21×8/16) 99×7/10 (3/7+4/21)×21 5/17×9/24+9/17×7/2
数字推理 8,-4,2,-1 ,1/21 ,3/4,9/5,7/16,25/9,( )求解题方法
1/2 3/4 7/8 27/16 ( )( )
数字推理1,1,8,16,7,21,4,16,2.()下一个数是什么?
找规律① 1 3 7 13 21 31 ② 2 4 8 16 32
1+3/2+5/4+7/8+9/16+11/32+……+21/1024
九宫格的数学题填数字 (1) 1 4 7 3 5 2 7 ?11 (2) 7 16 9 5 21 16 9 ? 4 (3
找规律.1,2,3,5,8,13,21,( ),( )…… 1,2,4,7,11,16,22,29,( )
计算(7+1)(7^2+1)(7^4+1)(7^8+1)(7^16+1)
简算5/6×8+2/5÷4 简算15/16+(7/16-1/4)÷1/2
找规律填数:2,3,5,8,13,21,( ).1,4,9,16,( ),( ).6,3,8,5,10,7,12,9,(