的相反数是
如图所示,在数轴上点A和点B之间表示整数的点有________个.
16 a 3 - 24 a 2 + 8 a ÷ 8 a =________.
2 x ( 1 2 x - 1 ) =________
1. a 2 ( ) = a 6 ; 2. ( ) ÷ a 6 = a 2
(1) 2 的相反数是_______. (2) 7 2 =________. (3) 36 - 27 3 =________.