初一数学上册计算题大全215.docx

1、初一数学上册计算题大全215 1 3 ()()(3) 22(1)2(5) 7 7 8 1 4 ( )( ） 15(20)4(15) 7 4 3 1 (0.7)(5) (2)453 (1)2603 8 1 1 1 ()()0 22(4)3(1 8 5 7 1 8 1 ( )( ) 11(16)9(12) 3 7 8 6 4 ( )(90) (2)222 (1)1636 5 5 (-19)(-6) 19(-11) 14.5(-3) 1 1 ()() -13-3(-203) (-3)414 7 8 -4017(-10)(-5) 2(-1.9)(-4.7)4.2 2 1 1 3 1 2 ()() 7.

2、5()(8.2) 5 5 5 7 5 5 (9y4) x8(36b) 3a7(7n7t) (5an)2(6y4b) 1 (146x)t 4(2c6mn7) 5 1 1 (xy)(st) 2(9by)4(n2p) 3 6 6m(4m1) 2m(7m7z)(3zm) 5(7a7)6a 1(2b2)(7b2) 2(ab2a)(8a9b) 3(abc5a)7(9a8abc) 2(xy7z)(xy7z) 7(pqpr)(5pqpr) 5 x 1 x 0.8x0.36.56.8x 3 8 3 2 1 2x3x 4(x6)6(x7)4 7 6 1 2 (8x9)x4 7x8(6x)9 4 5 y2 y2 6

3、 4.5x9.5(x9)5 2 6 1 2 (24x)(5x4) 8(2x9)16 3 3 3 3 ()()(10) 20(4)2(3) 7 7 9 1 6 ( )( ） 21(26)4(18) 8 4 5 1 (0.1)(500) (1)413 (1)1018 8 1 1 1 ()()0 23(4)3(4 5 6 9 1 2 1 ( )( ) 22(23)7(18) 8 3 3 3 1 ( )(50) (3)443 (1)1423 4 6 (-11)(-7) 6(-10) -8.5(-24) 1 1 ()() -40(-174) (-3)212 4 6 1612(-19)(-15) 8.2(

4、-6.5)(-0.5)2.7 2 1 1 3 8 8 ()() 5.3()(2.2) 9 2 5 7 5 5 (9n7) z4(46b) 20m9(9n2t) (5mn)5(2n3b) 1 (142z)t 3(3c7ab8) 4 1 1 (yz)(ef) 4(9ay)6(m5q) 7 4 6y(4y7) 3y(3y3z)(6zy) 7(8m7)4m 4(7y3)(8y9) 5(ab3a)(3a5b) 14(abc3a)5(8a4abc) 3(xy2z)(xy7z) 5(pqpr)(3pqpr) 5 x 1 x 0.9x0.93.73.7x 3 4 9 4 1 5x8x 7(x5)5(x1)10 5 6 1 2 (5x7)x8 7x7(19x)2 7 5 y1 y1 5 2x6(x2)25 4 6 1 2 (12x)(2x3) 4(9x9)2 7 9