-2.25+0.25-0.5
2个回答
=-(2.25-0.25)-0.5
=-2-0.5
=-2.5
相关问题
(-270)*0.25+0.25*21.5+(-8.5)*(-0.25)
0.25 1.25 25 2.5 2.05(
1+(1*0.5)=1.5 1.5+(1.5*0.5)=2.25 2.25+(2.25*0.5)=3.375.以此类推.
25×0.75-(-25)×0.5+25×(-0.25)
x^2-4(0.5-0.25x)(1.5-0.75X)-24(0.5-0.25X)^2
-﹙﹣4.5﹚÷﹙1/2-0.25﹚²-3.5÷│﹣0.25│²=
(-270)*0.25+0.25*21.5+8.5*(-25%)=多少
67*0.25+2.5*3.75-4.5*0.25简算