麻烦计算一下下列8道数学题,要详细……(用初一简便方法,(1)(-10(
(1)(-10)*(-8.24)*(-0.1)
(2)(-4又1/20)*1.25*(-8)
(3)(-7/9+5/6+3/4-7/18)*36
(4)31又15/16*(-8)
(5)2/3*(-1/2)*(-3又1/3)*(-3/5)
(6)【-7/12+3/4-5/6-(-5/18)】*(-36)
(7)(-3/5)*(10-1又2/3-4又1/6)
(8)(-35又6/7)*4
人气:250 ℃ 时间:2020-04-13 08:08:41
解答
(1)=-(10*8.24*0.1)=-8.24(2)=81/20*1.25*8=81/20*10=81/2(3)=36*-7/9+36*5/6+36*3/4-36*7/18=-28+30+27-14=-(28+14)+(27+30)=-42+57=57-42=15(4)=-((31+15/16)*8)=-(31*8+15/16*8)=-(248+7又1/2)=-255又1/2(8)=-((...
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