(1)4 6 3 (2)6 9 4 (3)5 8 4 (4)10 15 6
(1)4 6 3 (2)6 9 4 (3)5 8 4 (4)10 15 6
找规律(1)1,2,4,8,().(2)3,5,6,10,9,15,(),().
(1/3/12+2/6/24+3/9/36+4/12/48)/(2/3/5+4/6/10+6/9/15+8/12/20)
找规律:2/1、4/3、8/8、8/10、4/6( )、()、4/9
(+8)+(-10)+(-2)+(+1) (-5)+(+6)+(-3)+(-9)+(+4)+(+7) (+0.65)+(
2,3,4,6,6,9,8,( 12 ),( 10
5/4*(3/10+4/15)+5/8 1/6+5/18*3/5 2-6/13*26/9-2/3
看数字,猜成语.0 1 2 3 4 5 6 8 9( ) 0 2 4 6 8 10 12( ) 1 2 3 4 5( )
根据数字猜成语 1,2,3,4,5,6,7( ) 1,3,5,7,9( ) 2,4,6,8,10( ) 1,2,5,6,
已知:1*6=1×2×3×4×5×6,6*6=6×7×8×9×10×11,计算(2*5)÷(6*6)?
(1 2 3 4 ) (5 6 7 ) (8 9 10)加符号等于1998
(2+4+6+8+10+.+198+200)-(1+3+5+7+9+.+197+199)