寻找初一计算题50道其中,解方程10题,解方程组10题,计算题10题,解不等式10题,化简求值10题!要求：从易到难.

(1) (-15)*(-13)-6/(-9)(2) 15*(-1)/12+7(3) (-13)+(-16)+(-14)-(-6)(4) 14*12*(-20)*(-13)(5) 17-9-20+(-10)(6) 12/(-14)+(-14)+(-2)(7) (-15)-12/(-17)-(-3)(8) 6-3/9/(-8)(9) (-20)*(-15)*10*(-4)(10) 7/(-2)*(-3)/(-14)(11) 13/2*18*(-7)(12) 13*5+6+3(13) (-15)/5/3+(-20)(14) 19*4+17-4(15) (-11)-(-6)*(-4)*(-9)(16) (-16)+16-(-8)*(-13)(17) 16/(-1)/(-10)/(-20)(18) (-1)-(-9)-9/(-19)(19) 13*20*(-13)*4(20) 11*(-6)-3+18(21) (-20)+(-12)+(-1)+(-12)(22) (-19)-3*(-13)*4(23) (-13)/3-5*8(24) (-15)/1+17*(-18)(25) (-13)/3/19/8(26) (-3)/(-13)/20*5(27) 3/12/(-18)-18(28) 5*(-19)/13+(-6)(29) 4+4*(-19)-11(30) (-2)+17-5+(-1)(31) 9+(-3)*19*(-19)(32) (-12)-(-6)+17/2(33) 15*(-5)-(-3)/5(34) (-10)*2/(-1)/4(35) (-8)*16/(-6)+4(36) 2-11+12+10(37) (-3)+(-20)*(-7)*(-9)(38) (-15)+8-17/7(39) (-14)*10+18*2(40) (-7)+2-(-17)*19(41) (-7)/18/1+1(42) 11/(-9)-(-16)/17(43) 15+5*6-(-8)(44) (-13)*(-18)+18/(-6)(45) 11-(-1)/11*(-6)(46) (-4)+(-12)+19/6(47) (-18)/(-1)/(-19)+2(48) 9*(-8)*(-6)/11(49) 20*(-3)*(-5)+1(50) (-18)-2+(-11)/20答案1 587/32 23/43 -374 436805 -226 -(118/7)7 -(192/17)8 145/249 -1200010 -(3/4)11 -81912 7413 -2114 8915 20516 -10417 -(2/25)18 161/1919 -1352020 -5121 -4522 13723 -(133/3)24 -32125 -(13/456)26 3/5227 -(1297/72)28 -(173/13)29 -8330 931 109232 5/233 -(372/5)34 535 76/336 1337 -126338 -(66/7)39 -10440 31841 11/1842 -(43/153)43 5344 23145 115/1146 -(77/6)47 20/1948 432/1149 30150 -(411/20)