1、七年级数学(上)期末试题分项专练计算题 (1) (2) 35432 )4(81)2(163 (3) 2832003+(-283) 2003-10 (-2) (-1 ) 200251 (4) 2 4342(1) 3 (5) 02 3(4) 3 81 ( 6) (15)43(15)2115164 (7) . 3221)4(1 (8) (9) .12475.31820 )2(483)2(32 (10) 213)9(42165731 (11) ,其中 )15()8(1022xxx (12) )125.0(4)8(57)2(5.0(1643 (13) (6)+(+7)(+2)(1) (14) 1 200
2、45(2) (4) 2(8) (15) (16) (3) ( )(0.12525.0)61(5)32()4 658 (17) (4) (67) ( ) (18) ; 232922350()1 (19) . (20) 4(3) 215(3)502120.53() (21) 1 (22) 7x + 6 = 16 3x32x65 (23) 5(x-4)-7(7-x)-9=12-3(9-x); (24) .123tt (25) (26) 8x3 x13.045.x 21 (27) (x4)= (27x)4 (28) 213 521xx (29) ; (30) . 6)5(34x 5321032xx (31) (32) .2518324xx xx43871 (33) 1 (34) x+45 x 53 6322xx (35) (36) =1421032xx 413x675