1、七年级数学上册计算题天天练47y2 y3 6 5x1(x8)25 3 5 1 2 (33x)(5x2) 5(5x3)17 8 7 5 4 ()()(4) 20(3)3(2) 7 7 1 1 8 ( )( ) 24(27)8(16) 4 8 9 1 (0.2)(7) (4)222 (1)2661 2 1 1 1 ()()0 30(2)2(1 9 5 9 1 3 7 ( )( ) 11(21)10(16) 8 2 6 3 5 ( )(20) (3)332 (1)1233 2 6 (15)(13) 2(18) 5.5(8.5) 1 1 ()() 200(99) (3)224 9 2 1820(19)
2、(10) 3.3(8.6)(0.6)1.8 2 1 1 3 2 1 ()() 7.2()(5.4) 9 8 9 5 5 5 (6m8) y8(46c) 17x3(2n3t) (6xn)5(7m8c) 1 (124y)t 2(3a3bc2) 6 1 1 (xy)(st) 5(6bx)6(n5q) 7 2 3x(4x6) x(3x5s)(9sx) 5(6a2)4a 8(3n5)(2n1) 6(ab7a)(5a4b) 15(abc6a)5(9a8abc) 2(xy4z)(xy7z) 2(pqpr)(6pqpr) 5 x 1 x 0.5x0.86.72.1x 3 8 9 2 1 4x4x 7(x1)5
3、(x6)2 9 3 1 1 (6x5)x2 7x5(8x)3 9 5 y3 y1 7 4.5x9(x7)45 2 6 1 2 (33x)(2x1) 7(2x1)13 3 7 5 2 ()()(2) 15(3)3(2) 7 7 1 1 1 ( )( ) 27(17)9(12) 6 8 9 1 (0.6)(20) (2)343 (1)1866 8 1 1 1 ()()0 30(4)3(4 8 3 6 1 7 9 ( )( ) 7(26)2(11) 7 6 8 4 5 ( )(70) (3)322 (1)2929 3 6 (17)(11) 12(5) 0.5(18) 1 1 ()() 64(810)
4、 (5)424 4 6 263(21)(27) 5.6(9.5)(5)9.9 2 1 1 2 6 1 ()() 4.9()(7.9) 5 3 8 5 5 5 (4y1) z6(53a) 12m3(5b4t) (7mb)2(5y8a) 1 (210z)t 9(7a6xy2) 2 1 1 (bc)(mn) 5(7bx)6(m3p) 6 3 5y(9y6) 3y(6y7c)(9c2y) 4(4b6)2b 6(4b3)(5b10) 3(ab5a)(9a2b) 8(abc5a)2(4a4abc) 2(xy7z)(xy9z) 6(pqpr)(4pqpr) 5 x 1 x 0.3x0.60.74.9x 9
5、2 9 2 1 4x9x 6(x7)8(x2)16 9 8 1 4 (8x4)x2 3x6(20x)5 2 5 y3 y3 6 4x0.5(x3)10 2 5 1 2 (34x)(3x3) 4(6x5)5 7 7 6 5 ()()(3) 4(4)3(3) 7 7 1 1 4 ( )( ) 4(20)7(13) 7 8 5 1 (0.9)(50) (1)243 (1)2980 2 1 1 1 ()()0 10(1)3(2 7 4 9 1 6 3 ( )( ) 19(15)2(20) 7 7 2 1 1 ( )(40) (3)413 (1)2019 2 8 (14)(4) 15(15) 2.5(1
6、6) 1 1 ()() 115(178) (5)434 5 5 2818(22)(11) 0(9.7)(4.5)7.5 2 1 1 2 1 1 ()() 3.8()(5.1) 7 6 3 7 5 5 (7x2) x9(16a) 7a6(5y3t) (5ay)4(4x9a) 2 (146x)t 3(5c3ab9) 3 1 1 (yz)(pq) 3(8bx)7(n3q) 5 3 9y(8y2) y(2y8q)(2qy) 7(4t5)7t 2(2x1)(4x8) 7(ab2a)(2a7b) 8(abc8a)6(8a5abc) 5(xy5z)(xy3z) 9(pqpr)(7pqpr) 5 x 1 x
7、0.1x0.40.70.3x 9 6 9 2 1 4x6x 7(x4)5(x4)5 7 4 1 2 (4x7)x2 2x3(17x)1 3 5 y2 y3 3 3.5x1.5(x2)15 3 6 1 2 (14x)(4x2) 9(9x1)9 9 9 4 5 ()()(9) 27(3)3(4) 7 7 1 1 4 ( )( ) 4(27)1(19) 5 2 5 1 (0.2)(600) (4)432 (1)1494 6 1 1 1 ()()0 15(2)3(2 2 9 5 1 4 6 ( )( ) 18(18)4(18) 6 5 5 6 7 ( )(20) (2)223 (1)2893 7 6
8、(11)(1) 15(20) 2.5(8.5) 1 1 ()() 183(18) (2)452 2 8 51(29)(3) 6.3(8.4)(4.8)2.4 2 1 1 4 7 7 ()() 4.2()(8.1) 9 3 4 5 5 5 (2a1) z2(26a) 10a9(5y9z) (2ay)3(4a3a) 1 (188z)z 3(4d8bc7) 6 1 1 (bc)(st) 2(6by)3(m9q) 7 2 8a(2a3) a(5a3p)(4p4a) 2(8t6)2t 8(4y5)(5y6) 8(ab8a)(8a4b) 13(abc3a)9(2a4abc) 2(xy2z)(xy7z) 6
9、(pqpr)(7pqpr) 5 x 1 x 0.6x0.29.32.2x 6 8 9 4 1 8x1x 2(x6)3(x8)11 9 5 1 1 (4x2)x9 3x3(13x)4 5 5 y3 y2 6 5x5.5(x7)25 2 6 1 2 (44x)(2x4) 6(4x9)20 9 9 5 3 ()()(4) 30(3)3(3) 7 7 9 1 10 ( )( ) 22(16)6(15) 8 8 9 1 (0.3)(5) (1)333 (1)1008 5 1 1 1 ()()0 13(4)2(3 4 9 2 1 1 1 ( )( ) 10(28)10(16) 6 4 3 4 7 ( )(
10、100) (3)252 (1)2454 5 8 (2)(7) 11(12) 12.5(7.5) 1 1 ()() 191(117) (3)322 7 3 89(3)(29) 2.7(6.9)(1)6.8 2 1 1 3 8 2 ()() 4.9()(1.6) 7 8 9 7 5 5 (6y8) y3(46b) 15m5(8n9c) (5mn)8(7y5b) 1 (164y)c 7(3c3ab8) 9 1 1 (bc)(ef) 3(8bx)5(n5q) 7 6 3y(9y8) y(8y3q)(8qy) 7(9m6)2m 4(3x1)(7x1) 3(ab3a)(9a9b) 15(abc6a)9(5
11、a8abc) 7(xy7z)(xy7z) 4(pqpr)(4pqpr) 7 x 1 x 0.9x0.64.50.9x 3 4 3 2 1 2x6x 8(x5)3(x6)6 9 9 1 1 (8x6)x2 7x7(14x)6 6 5 y3 y2 7 1x6.5(x8)45 3 6 1 2 (34x)(2x2) 5(8x7)11 9 7 2 2 ()()(7) 18(1)3(5) 7 7 1 1 1 ( )( ) 17(20)9(14) 2 8 3 1 (0.6)(20) (5)343 (1)2335 6 1 1 1 ()()0 11(4)3(4 5 9 2 1 4 3 ( )( ) 23(22)9(13) 2 5 4 3 7 ( )(30) (4)332 (1)2351 2 6 (4)(5) 18(13) 15(17.5) 1 1 ()() 175(207) (5)434 8 6
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