七年级数学上册计算题天天练 26.docx

1、七年级数学上册计算题天天练 26 6 5 ()()(8) 12(1)3(3) 7 7 6 1 2 ( )( ） 21(26)2(11) 7 4 3 1 (0.3)(10) (4)433 (1)2585 6 1 1 1 ()()0 9(2)2(3 8 7 3 1 7 6 ( )( ) 24(14)2(20) 2 8 7 8 1 ( )(90) (1)323 (1)1071 7 2 (-8)(-20) 8(-1) 10.5(-4) 1 1 ()() -181(-35) (-5)413 7 2 273(-7)(-7) -7(-2.4)(-4.1)2.7 2 1 1 1 6 3 ()() 6.7()(

2、4.5) 3 2 6 5 5 5 (5y7) z9(56a) 10m7(3y9z) (2my)8(5y9a) 1 (24z)z 5(3c2ab3) 5 1 1 (yz)(st) 2(9bx)9(n4q) 8 8 2m(9m9) m(7m2d)(4dm) 2(4t1)5t 9(9n9)(3n1) 5(ab4a)(8a6b) 5(abc9a)6(5a9abc) 2(xy5z)(xy4z) 2(pqpr)(6pqpr) 5 x 1 x 0.8x0.95.46.6x 3 4 9 8 1 8x7x 2(x7)9(x7)5 7 5 1 4 (6x8)x4 8x7(10x)9 3 5 y2 y3 8 4x5

3、.5(x6)25 2 6 1 2 (32x)(2x1) 6(7x4)11 4 5 3 3 ()()(10) 24(2)2(2) 7 7 7 1 1 ( )( ） 7(18)10(13) 6 6 7 1 (0.3)(50) (2)253 (1)2960 9 1 1 1 ()()0 22(1)2(1 3 3 9 1 7 1 ( )( ) 3(11)2(15) 6 8 6 1 6 ( )(30) (1)253 (1)2589 5 5 (-7)(-18) 8(-11) -15(-14.5) 1 1 ()() -12-2(-72) (-2)343 9 6 -1515(-7)(-5) -4(-9.7)(-

4、3.2)0.1 2 1 1 2 2 6 ()() 9.5()(6.7) 5 8 9 5 5 5 (3a5) x2(15b) 9x4(2y7c) (5xy)7(3a9b) 1 (2010x)c 8(3d4bc2) 4 1 1 (xy)(st) 4(8by)6(n8q) 6 2 9m(7m8) 2m(6m7q)(7q5m) 6(6n4)6n 4(6n2)(4n3) 9(ab3a)(8a4b) 8(abc6a)4(6a3abc) 4(xy2z)(xy7z) 5(pqpr)(9pqpr) 7 x 1 x 0.1x0.29.51.6x 9 4 9 4 1 3x5x 4(x3)2(x1)8 3 9 1 4 (5x6)x2 4x9(15x)9 2 5 y1 y3 3 1x0.5(x2)45 4 5 1 2 (12x)(5x5) 5(6x9)3 3 3