1、七年级数学上册计算题天天练642(7m10)9m 10(6n4)(7n5) 2(ab5a)(2a4b) 16(abc8a)6(6a7abc) 2(xy8z)(xy3z) 7(pqpr)(2pqpr) 7 x 1 x 0.5x0.50.98.6x 3 4 3 2 1 4x9x 9(x4)2(x2)14 5 9 1 3 (8x3)x1 6x3(17x)9 6 5 y1 y3 3 2x1(x9)15 3 5 1 2 (44x)(3x2) 7(9x6)5 8 5 4 6 ()()(9) 26(3)3(5) 7 7 8 1 8 ( )( ) 13(14)6(16) 7 8 7 1 (0.1)(300)
2、(4)222 (1)1822 3 1 1 1 ()()0 5(4)2(2 4 7 2 1 9 2 ( )( ) 13(26)7(11) 5 8 3 1 7 ( )(100) (2)343 (1)1106 5 6 (13)(12) 6(13) 3.5(10) 1 1 ()() 00(49) (0)323 8 7 2313(15)(4) 7.6(1.1)(1)8.3 2 1 1 2 6 7 ()() 7.2()(2.5) 9 8 5 7 5 5 (2a4) z4(93c) 17x6(9y5c) (8xy)9(6a2c) 1 (42z)c 6(2a5xy1) 2 1 1 (ab)(mn) 5(7bx
3、)3(n7q) 7 3 6m(6m6) 6m(4m4q)(2q4m) 5(9m1)3m 6(7x9)(6x4) 3(ab4a)(7a2b) 7(abc6a)8(9a4abc) 7(xy4z)(xy6z) 9(pqpr)(2pqpr) 7 x 1 x 0.5x0.52.49.8x 3 4 3 4 1 5x4x 9(x7)7(x8)4 3 7 1 1 (9x1)x8 9x3(7x)3 3 5 y2 y2 8 5x3(x7)20 2 6 1 2 (32x)(4x4) 9(2x5)20 5 5 3 3 ()()(6) 15(2)3(5) 7 7 1 1 1 ( )( ) 5(13)8(20) 2 4
4、3 1 (0.4)(100) (1)233 (1)2056 2 1 1 1 ()()0 24(3)3(5 9 6 2 1 4 1 ( )( ) 13(29)3(11) 5 5 7 8 3 ( )(10) (3)443 (1)1641 7 2 (7)(6) 0(2) 8(23) 1 1 ()() 95(41) (5)434 6 8 117(15)(15) 4.7(2.1)(0.3)4.9 2 1 1 2 4 1 ()() 4.6()(8.2) 9 7 8 7 5 5 (5x5) z7(76b) 5m8(6b3z) (2mb)4(7x7b) 2 (26z)z 9(2b3xy1) 3 1 1 (bc
5、)(st) 3(9ax)3(n5q) 9 2 9m(6m6) m(6m3q)(8qm) 9(8s3)7s 6(6x3)(7x2) 5(ab7a)(3a2b) 19(abc3a)9(3a4abc) 7(xy8z)(xy3z) 8(pqpr)(4pqpr) 5 x 1 x 0.2x0.635.8x 6 6 9 4 1 6x2x 9(x5)5(x1)4 7 3 1 3 (9x3)x9 7x5(4x)3 9 5 y3 y3 4 2x10(x8)5 2 6 1 2 (34x)(5x4) 4(7x9)10 6 7 1 5 ()()(9) 16(4)3(1) 7 7 3 1 1 ( )( ) 5(21)8(
6、19) 4 8 9 1 (0.9)(70) (5)422 (1)2057 5 1 1 1 ()()0 23(2)3(2 5 7 3 1 6 6 ( )( ) 3(27)7(17) 6 5 7 1 4 ( )(100) (2)212 (1)2009 2 3 (10)(15) 5(10) 2(1.5) 1 1 ()() 113(31) (1)333 6 5 1210(11)(10) 1.8(7.2)(1.4)9.6 2 1 1 2 8 3 ()() 8.5()(1.8) 7 3 3 5 5 5 (2b8) z7(27b) 6a7(9y4z) (7ay)4(9b3b) 1 (1410z)z 7(6b
7、2bc3) 3 1 1 (xy)(st) 5(8by)5(m9q) 6 3 7m(8m9) m(9m8q)(5q6m) 9(4n4)5n 9(3y4)(7y8) 3(ab2a)(3a6b) 6(abc3a)5(5a4abc) 7(xy4z)(xy2z) 8(pqpr)(5pqpr) 5 x 1 x 0.6x0.57.56.1x 6 8 6 8 1 4x1x 3(x4)6(x6)16 9 5 1 4 (9x2)x6 6x7(15x)7 5 5 y3 y2 7 3x7(x8)10 3 5 1 2 (23x)(2x5) 5(2x1)20 2 3 3 1 ()()(6) 19(1)2(1) 7 7 1
8、 1 1 ( )( ) 6(30)7(12) 8 6 3 1 (0.2)(9) (2)442 (1)2335 4 1 1 1 ()()0 15(1)2(3 3 4 5 1 5 4 ( )( ) 22(25)7(14) 3 6 3 1 4 ( )(10) (4)413 (1)1886 2 5 (1)(2) 7(20) 14(17) 1 1 ()() 85(191) (0)252 2 9 319(22)(3) 6.5(8)(2.1)7.2 2 1 1 4 2 8 ()() 9.2()(2.9) 7 8 4 5 5 5 (3a7) x5(75b) 5m2(7n5t) (6mn)3(7a8b) 1 (
9、206x)t 4(9d7bc6) 6 1 1 (ab)(mn) 4(6ay)2(n2q) 9 7 2y(9y3) y(8y5z)(3z2y) 3(7b4)6b 3(7b6)(9b1) 9(ab2a)(4a8b) 12(abc6a)2(5a8abc) 5(xy8z)(xy8z) 3(pqpr)(2pqpr) 5 x 1 x 0.2x0.71.99x 9 6 3 4 1 3x5x 3(x8)2(x6)15 3 2 1 3 (5x4)x6 9x8(4x)1 3 5 y1 y2 6 2x8(x1)50 3 6 1 2 (24x)(3x2) 8(3x8)8 7 3 5 2 ()()(1) 3(2)2(5
10、) 7 7 5 1 6 ( )( ) 11(30)1(15) 4 4 5 1 (0.3)(1) (1)342 (1)1252 2 1 1 1 ()()0 14(3)3(3 6 7 3 1 1 1 ( )( ) 6(11)3(14) 5 3 6 2 5 ( )(20) (1)352 (1)2087 3 4 (19)(15) 4(5) 4.5(24) 1 1 ()() 161(186) (5)242 2 8 912(16)(29) 8.4(3.7)(3.3)6.8 2 1 1 2 8 4 ()() 3.9()(3.3) 3 3 8 7 5 5 (6y7) y7(32c) 4a9(6b4c) (5a
11、b)3(3y4c) 5 (146y)c 7(8d6xy1) 4 1 1 (ab)(mn) 2(8bx)6(m7q) 4 5 9m(4m1) m(4m5c)(4c3m) 7(8t5)4t 7(3x3)(9x7) 4(ab4a)(5a4b) 11(abc6a)9(2a8abc) 9(xy8z)(xy4z) 7(pqpr)(3pqpr) 5 x 1 x 0.6x0.15.91.6x 9 2 3 8 1 8x9x 9(x1)6(x3)16 3 6 1 2 (6x4)x7 6x5(10x)5 4 5 y1 y2 6 4x8.5(x1)10 3 5 1 2 (54x)(5x5) 6(6x2)3 2 7 1 4 ()()(2) 10(3)3(3) 7 7 1 1 4 ( )( ) 1(10)7(15) 6 8 3
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