求150道七年级下数学幂的运算计算题..要有过程..否则关闭..好的追加100分

1.0.7+0.9= 2.1.2+0.5= 3.3.2+0.4= 4.0.8-0.3= 5.1.7-0.4=
6.4.5-0.3= 7.0.5+0.6= 8.8.2+0.8= 9.5.7+0.9= 10.0.25+0.75=
11.1-0.6= 12.10-8.2= 13.0.53+0.47= 14.1+9.9= 15.8.3-0.9=
16.6.45+0.51= 17.7-0.05= 18.1.67+2.3= 19.19.8-4.63= 20.12.51+6.69=
21.11-8.39= 22.51.9-27.62= 23.3.86-2.125= 24.0.5+0.07=
25.15.7-5= 26.8+8.2= 27.0.54+0.46= 28.1-0.73= 29.10-0.05=
30.6.8-0.75= 31.8+0.2= 32.4.8+3.9= 33.13.52-6.87= 34.79.2-34.2=
35.29-18.14= 36.5.5+4.5= 37.0.875+0.125= 38.9-0.95= 39.6.89+4.2=
40.12-1.2= 41.3.7+6.03= 42.8.25-0.5= 43.2.45+0.55= 44.3-0.3= 29．(ym)3•yn
60．(-ab)3•(-a2b)•(-a2b4c)2．
61．[(-a)2m]3•a3m+[(-a)5m]2．
62．xn+1(xn-xn-1+x)．
63．(x+y)(x2-xy+y2)．

65．5x(x2+2x+1)-(2x+3)(x-5)．

67．(2x-3)(x+4)．

70．(-2ambn)(-a2bn)(-3ab2)．

74．(m-n)(m5+m4n+m3n2+m2n3+mn4+n5)．
75．(2a2-1)(a-4)(a2+3)(2a-5)．
76．2[(x+2)(x+1)-