1、初一数学上册计算训练营93 4 4 ()()(8) 15(2)2(3) 7 7 3 1 6 ( )( ) 6(28)6(13) 2 8 5 1 (0.1)(50) (1)352 (1)2080 6 1 1 1 ()()0 12(3)3(4 3 7 2 1 3 4 ( )( ) 1(25)10(19) 6 2 5 1 1 ( )(40) (4)343 (1)1597 6 2 (6)(17) 18(1) 6(2.5) 1 1 ()() 01(84) (0)332 3 7 117(19)(28) 5.3(7.8)(3.8)7.4 2 1 1 1 1 4 ()() 7.9()(8.3) 9 3 8 7
2、 5 5 (8m6) y4(75c) 2a4(2y4c) (9ay)3(3m7c) 1 (28y)c 4(4d8ab9) 2 1 1 (bc)(st) 4(8bx)2(n9p) 6 7 9x(3x9) 3x(6x2p)(2px) 5(9s3)9s 10(9m2)(3m4) 7(ab2a)(9a7b) 20(abc8a)6(9a6abc) 8(xy6z)(xy4z) 4(pqpr)(6pqpr) 5 x 1 x 0.2x0.88.72.5x 9 4 3 2 1 8x4x 6(x1)9(x9)11 3 5 1 3 (4x5)x2 9x5(18x)7 6 5 y1 y3 8 4.5x7(x6)5 3
3、 5 0.2x0.19.64.3x 8(7x5)9 2 6 ()()(2) 9(3)2(4) 7 7 5 1 2 ( )( ) 20(25)6(15) 6 2 3 1 (0.5)(100) (3)343 (1)1390 3 1 1 1 ()()0 10(1)2(4 6 4 7 1 3 1 ( )( ) 28(17)4(18) 4 2 5 1 1 ( )(40) (5)312 (1)2074 7 6 (11)(11) 0(3) 2(9) 1 1 ()() 163(1410) (1)413 6 9 1911(9)(21) 5.6(2.7)(2.4)2.9 2 1 1 2 8 9 ()() 4.3(
4、)(4.7) 3 5 3 5 5 5 (2x7) y5(58c) 13a9(9b5t) (9ab)8(4x4c) 2 (104y)t 9(4a5mn4) 3 1 1 (ab)(ef) 5(7by)4(n4p) 6 4 8a(7a2) a(9a4p)(6p7a) 5(3a2)9a 10(7n6)(4n5) 4(ab5a)(7a6b) 16(abc3a)7(7a8abc) 9(xy6z)(xy7z) 7(pqpr)(4pqpr) 7 x 1 x 0.8x0.55.92.2x 3 6 6 8 1 2x7x 6(x8)4(x5)19 3 9 1 3 (8x2)x5 5x5(2x)4 2 5 y3 y1
5、 4 1x8(x3)40 2 5 0.2x0.31.34.9x 8(3x3)11 4 3 ()()(2) 20(1)3(3) 7 7 4 1 4 ( )( ) 9(19)6(19) 3 8 3 1 (0.6)(3) (3)453 (1)1649 6 1 1 1 ()()0 7(2)3(4 5 9 7 1 6 1 ( )( ) 7(11)5(16) 4 5 6 1 1 ( )(50) (5)312 (1)1888 5 2 (15)(11) 19(13) 0.5(14.5) 1 1 ()() 04(133) (3)232 5 9 912(24)(18) 0.6(0.3)(1.4)6.2 2 1 1
6、 4 4 8 ()() 2.6()(6.8) 9 5 6 7 5 5 (8n4) y4(22a) 10x9(8n4z) (4xn)4(9n9a) 1 (202y)z 6(7c7bc2) 9 1 1 (xy)(mn) 5(6bx)8(m7q) 5 4 4y(5y3) 9y(5y2p)(6py) 8(4b2)4b 2(5y3)(8y6) 2(ab3a)(6a9b) 5(abc8a)8(8a5abc) 4(xy6z)(xy8z) 4(pqpr)(8pqpr) 7 x 1 x 0.8x0.71.13.8x 3 2 9 2 1 6x9x 2(x7)8(x1)9 3 5 1 4 (8x1)x4 9x7(1
7、0x)3 8 5 y3 y1 3 2.5x2.5(x2)35 3 5 0.8x0.94.36.2x 7(5x7)2 4 3 ()()(7) 17(4)3(4) 7 7 1 1 1 ( )( ) 21(29)2(20) 7 4 3 1 (0.8)(400) (4)413 (1)1284 3 1 1 1 ()()0 27(3)2(1 4 5 8 1 1 7 ( )( ) 26(20)4(10) 2 2 6 1 7 ( )(40) (4)332 (1)2009 4 8 (15)(15) 8(16) 14(19.5) 1 1 ()() 55(208) (5)224 4 2 135(8)(1) 7.3(8.7)(4.2)2.5 2 1 1 1 1 3 ()() 2.3()(7.8) 3 9 7 7 5 5 (5a6) z3(35a) 14a2(9n2z) (9an)9(8a3a) 1 (166z)z 8(2c5ab2) 9 1 1 (bc)(mn) 2(8ax)5(m7p) 9 9 4n(8n3) n(3n2s)(7sn) 5(8m6)4m 1(5x1)(3x8) 2(
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