(-270)*1/4+0.25*21.5+(-8 1/2)*(-25%)
2个回答
原式=(-270)×1/4+43/2×1/4+17/2×1/4
=1/4×(-270+43/2+17/2)
=1/4×(-240)
=-60
相关问题
(-270)*0.25+0.25*21.5+(-8.5)*(-0.25)
(-270)*0.25+0.25*21.5+8.5*(-25%)=多少
(负270)乘四分之一+0.25乘21.5+(负8又2分之1)乘(-25%)
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(1)-6-[3/25-(-4/5)^2]*(-5)^3 (2)-0.25除以(-1/2)^3+(1/8-1/2)*(-
求未知数x. [5/6]x-0.4=3.4 4(x+0.2)=2.4 [5/8]:x=0.25:3 [1.25/0.25