初中数学计算题专项练习 7页

计算题：第一部分(1)(-x)2·(-x)3(2)10×102×103(3)x2m+1·xm·x(4)a·(b+1)3·a2·(b+1)(5)3×34×9(6)(x-2y)2·(2y-x)5(7)(-y+x)·(y-x)(8)(a+2b)3·(2b+a)4(9)(-y4)3+(y3)4(10)(xy2)2(11)a3·a4·a+(a2)4+(-2a4)2(12)2(x3)2·x3－(3x3)3+(5x)2·x7(13)(14)(15)(-8)2016×0.1252015(16)0.5202×2201×(-1)201(17)(-3xy4)3(18)(-x)2m+2÷(-x)2(19)(-x2y)4÷(-x2y)3(20)(xy)10÷(-xy)2÷(xy)3(21)(7×8)0×10-2(22)0.5-1+|1-2|＋(2-1)3(23)[(-2)-3－8-1×(-1)-2]×(π－2)0(24)x20÷[(-x2)3]2－x2·(-x)3÷(-x2)2(25)(26)\n第二部分(1)3x2y·(-2xy3z)(2)3a3·4b4(3)(4×105)×(5×106)(4)-6m2n·(x-y)3·mn2·(y-x)2(5)(6)\n(7)5x3y·(-3y)2+(-6xy)2·(-xy)+xy3·(-4x)2(8)0.4x2y·(0.5xy)2－(-2x)3·xy3(9)(-5an-1b)(-2a)(10)(-3ab)(-a2c)2·6ab(c2)3(11)[3(x-y)2]·[-2(x-y)3]·[4(x-y)](12)(-4x)·(2x2+3x-1)(13)(4ab2-2ab)·2ab(14)x2(x2-x+1)-x(x3-x2+x-1)(15)(-2x3y)·(3xy2-3xy+1)(16)2x(3x2+1)(17)(2x-3)(x+4)(18)(3x+y)(x-2y)(19)(2a-3b)(a+5b)(20)(a+b)2(21)(a+b)(a-b)(22)(-a2)(a+1)-(a+2)(a-1)(23)5x2-(x-2)(3x+1)-2(x+1)(x-5)(24)(2x-3y)(3x-4y)(25)(2a+1)(a-2)(26)(a-2)2(a+2)2(27)59.8×60.2(28)(3a-b)(-b-3a)(29)(3a+2b)(3a-2b)(30)1012(31)1992－200×198(32)(-2a-3b)2(33)(3-x)(3+x)+(x+1)2\n第三部分(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)\n(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)\n第四部分(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)\n(21)(22)(23)(24)(25)(26)