1、七年级数学上册计算题天天练 92 2 4 ()()(8) 19(3)2(1) 7 7 4 1 2 ( )( ) 4(16)8(12) 5 8 3 1 (0.7)(6) (4)423 (1)1964 3 1 1 1 ()()0 28(1)2(4 8 6 6 1 1 5 ( )( ) 1(10)7(19) 4 3 6 1 7 ( )(90) (3)243 (1)2173 4 6 (-9)(-6) 13(-19) 14.5(-24.5) 1 1 ()() 05(-148) (-1)212 6 5 4013(-11)(-15) 7.2(-9.2)(-0.2)7.5 2 1 1 4 7 9 ()() 2
2、.2()(8.2) 3 6 3 7 5 5 (7y1) z2(32b) 3m7(5y3c) (3my)2(9y2b) 4 (42z)c 3(2a4bc6) 5 1 1 (bc)(ef) 5(6ay)8(n4p) 5 2 4m(4m8) m(4m5q)(3qm) 6(4b4)9b 10(9n4)(4n6) 7(ab8a)(5a6b) 13(abc8a)5(9a2abc) 6(xy4z)(xy8z) 6(pqpr)(9pqpr) 5 x 1 x 0.9x0.27.72.9x 3 4 3 4 1 6x3x 9(x6)9(x6)17 7 2 1 4 (8x3)x7 7x2(8x)3 6 5 y2 y2
3、 7 1.5x3(x3)50 2 6 1 2 (43x)(4x2) 2(8x6)15 5 7 1 5 ()()(5) 5(3)2(3) 7 7 1 1 1 ( )( ) 13(27)1(19) 3 6 9 1 (0.8)(8) (3)232 (1)2287 5 1 1 1 ()()0 15(3)3(5 7 9 6 1 2 1 ( )( ) 4(24)4(12) 7 3 5 5 1 ( )(30) (5)332 (1)2848 6 4 (-2)(-14) 15(-11) 5.5(-11) 1 1 ()() -85(-79) (0)434 8 9 -819(-29)(-17) -0.9(-1.8)
4、(-1.6)6 2 1 1 3 3 3 ()() 7.9()(9.7) 3 6 5 7 5 5 (6m6) y5(95b) 13m4(8y8c) (3my)6(4m2b) 7 (810y)c 6(5c4ab2) 6 1 1 (bc)(ef) 5(9ax)7(n4q) 3 9 7a(2a7) 5a(4a7c)(2c8a) 9(5m8)7m 4(5b9)(6b6) 3(ab6a)(5a9b) 5(abc8a)7(7a4abc) 9(xy5z)(xy7z) 5(pqpr)(2pqpr) 5 x 1 x 0.4x0.79.14.8x 3 2 6 2 1 5x8x 8(x2)7(x1)13 3 3 1 2 (2x1)x3 9x3(6x)9 7 5 y3 y3 6 2x7.5(x4)20 3 5 1 2 (22x)(3x2) 6(9x1)11 9 7