来自刘玉杰的问题
15+(-1/4)-15-(-0.25)8-2×33-(-0.25)-2-12-(-1/3-1/4+1/2)要写解要写递等式计算
15+(-1/4)-15-(-0.25)8-2×33-(-0.25)
-2-12-(-1/3-1/4+1/2)
要写解要写递等式计算
1回答
2020-03-22 16:48
15+(-1/4)-15-(-0.25)8-2×33-(-0.25)-2-12-(-1/3-1/4+1/2)要写解要写递等式计算
15+(-1/4)-15-(-0.25)8-2×33-(-0.25)
-2-12-(-1/3-1/4+1/2)
要写解要写递等式计算
(1)原式=(15-15)-(1/4-0.25)=0-0=0(2)原式=8-66+0.25=-58+0.25=-57.75(3)原式=-2-12-(-4-3+6)/12=-2-12-(-1/12)=-2-12+1/12=-167/12