The new curriculum standard curriculum basic training mathematics (the first volume of the seventh grade, Hunan Education Edition) 8 pages of answers. Hurry up! ! ! ! ! ! ! ! !
3.-2 -5 8 7 0 6 -7 0 4.4 -5 5.350 -500 6.2 1.2 7.4 8.b c d d 12。 -6 1 -5 29 5/6 13.2.3450 14.2.85