1、初一数学上册计算训练营92 1 3 ()()(3) 4(1)3(2) 7 7 1 1 1 ( )( ) 27(27)8(18) 3 6 9 1 (0.9)(2) (1)242 (1)1638 5 1 1 1 ()()0 20(1)2(2 4 8 9 1 1 7 ( )( ) 18(18)9(20) 4 8 8 5 1 ( )(80) (2)242 (1)2737 4 4 (4)(11) 6(20) 11.5(22) 1 1 ()() 184(172) (3)454 8 3 59(18)(21) 1(1.9)(1.7)2.7 2 1 1 4 4 7 ()() 4.9()(4.5) 9 6 7 5
2、 5 5 (4b2) x5(64b) 4x7(7y7z) (7xy)6(2b7b) 1 (210x)z 2(7c4mn7) 2 1 1 (xy)(mn) 5(8bx)7(m7p) 2 8 4x(8x6) x(5x9s)(4s4x) 8(8b3)2b 4(8m2)(4m1) 6(ab3a)(9a3b) 5(abc8a)3(8a6abc) 5(xy4z)(xy8z) 4(pqpr)(8pqpr) 5 x 1 x 0.7x0.13.50.9x 9 4 3 8 1 2x4x 7(x8)2(x2)19 7 7 1 1 (8x6)x7 4x4(12x)5 3 5 y3 y2 3 0.5x2(x1)25 2
3、 5 0.6x0.130.6x 9(5x7)14 3 3 ()()(10) 1(1)3(2) 7 7 6 1 1 ( )( ) 1(22)6(19) 7 6 3 1 (0.7)(1000) (1)312 (1)1539 4 1 1 1 ()()0 15(1)2(3 8 4 6 1 1 4 ( )( ) 29(12)4(16) 4 7 3 9 3 ( )(30) (1)422 (1)1939 8 2 (2)(10) 0(10) 3.5(5) 1 1 ()() 13(183) (3)222 4 5 407(21)(29) 9.2(2.3)(0.3)8.4 2 1 1 3 7 6 ()() 5.8(
4、)(9.9) 9 7 7 5 5 5 (3x6) y7(64c) 13a3(6n3t) (7an)6(3x6c) 3 (122y)t 8(2c7xy2) 2 1 1 (yz)(st) 4(7ax)2(m5q) 4 7 7y(6y7) 9y(6y5q)(7q9y) 3(7m8)7m 6(5x6)(9x1) 5(ab8a)(3a7b) 14(abc2a)8(3a7abc) 8(xy7z)(xy7z) 5(pqpr)(5pqpr) 5 x 1 x 0.9x0.61.86.5x 6 8 3 4 1 2x2x 7(x8)3(x3)19 3 7 1 1 (3x7)x8 8x5(5x)4 3 5 y3 y1
5、 7 3x3.5(x9)15 2 6 0.3x0.37.81.7x 9(9x1)19 3 4 ()()(3) 29(1)2(2) 7 7 1 1 1 ( )( ) 3(16)6(17) 6 4 9 1 (0.7)(10) (4)423 (1)2296 4 1 1 1 ()()0 18(1)3(3 4 8 6 1 1 4 ( )( ) 23(16)2(19) 3 2 3 1 1 ( )(90) (2)233 (1)1603 2 3 (14)(16) 14(19) 5.5(9.5) 1 1 ()() 163(49) (0)433 8 7 176(12)(13) 1.6(8.6)(3.2)5.8 2
6、 1 1 4 6 6 ()() 3.1()(1.4) 9 7 9 5 5 5 (3b9) y2(33c) 5x8(6b9t) (9xb)4(2b4c) 1 (48y)t 7(3a8ab4) 6 1 1 (bc)(mn) 3(8ax)5(n6q) 7 8 2y(6y1) y(3y2s)(4s3y) 8(4t10)9t 5(2a8)(3a8) 6(ab5a)(2a6b) 2(abc5a)8(7a6abc) 9(xy2z)(xy3z) 5(pqpr)(2pqpr) 5 x 1 x 0.4x0.32.23x 6 8 6 4 1 6x3x 7(x3)5(x1)13 7 5 1 1 (4x5)x2 3x3
7、(15x)4 2 5 y1 y1 6 3x1.5(x2)10 4 5 0.1x0.85.57.6x 6(6x7)8 5 2 ()()(7) 30(1)2(4) 7 7 6 1 1 ( )( ) 14(28)8(11) 5 4 7 1 (0.9)(9) (2)332 (1)1362 3 1 1 1 ()()0 15(4)3(5 8 3 9 1 1 1 ( )( ) 24(25)1(14) 5 4 5 1 1 ( )(20) (2)242 (1)2034 3 2 (15)(13) 3(4) 0.5(8) 1 1 ()() 141(52) (4)344 9 3 05(7)(14) 10(3.7)(0
8、.7)5.6 2 1 1 4 1 6 ()() 9.3()(9.3) 9 6 7 7 5 5 (5y2) x2(89c) 7a4(8y5c) (2ay)7(3y9c) 1 (206x)c 6(5d5bc8) 7 1 1 (xy)(mn) 5(7bx)3(m2p) 9 6 9m(6m6) m(6m7d)(6d8m) 6(2t10)5t 8(7m6)(6m3) 4(ab6a)(4a4b) 10(abc6a)5(6a9abc) 8(xy4z)(xy5z) 4(pqpr)(2pqpr) 5 x 1 x 0.7x0.26.62.9x 3 6 9 8 1 6x8x 2(x2)6(x9)18 3 5 1 4
9、 (2x9)x5 4x8(16x)5 8 5 y2 y1 2 3x5.5(x1)35 4 5 0.6x0.77.43.3x 2(7x1)3 2 2 ()()(3) 14(2)3(2) 7 7 7 1 8 ( )( ) 29(28)4(16) 8 6 7 1 (0.2)(100) (1)213 (1)2230 4 1 1 1 ()()0 12(4)3(1 9 5 3 1 5 7 ( )( ) 30(15)6(20) 4 6 6 1 3 ( )(30) (5)243 (1)2227 2 4 (16)(3) 20(6) 3.5(19.5) 1 1 ()() 05(198) (3)323 7 7 23
10、17(30)(24) 3.9(0.2)(4.6)4.2 2 1 1 3 8 1 ()() 8.8()(1.3) 5 7 7 7 5 5 (4m7) x3(17a) 4a5(3y7c) (8ay)8(2m4a) 1 (48x)c 8(4d6xy4) 8 1 1 (yz)(pq) 4(7bx)7(n6q) 3 8 2m(7m8) m(4m8z)(2z4m) 9(9b8)3b 5(7b2)(8b1) 8(ab5a)(8a6b) 11(abc8a)4(2a9abc) 9(xy8z)(xy9z) 4(pqpr)(4pqpr) 7 x 1 x 0.9x0.33.24.9x 3 4 3 4 1 2x9x 4(x6)4(x8)16 3 7 1 2 (4x5)x1 8x4(4x)2 2 5 y1 y3 9 1x10(x6)30 3 5 0.7x0.50.30.1x 4(4x4)8
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