几道数学题,懒得算
问题描述:
几道数学题,懒得算
(-1.2)x(-3)
(-1又1/3)x(4又1/2)
15x(-2/5)
(-17/8)x0
答
(-1.2)x(-3)=3.6
(-1又1/3)x(4又1/2)=-6
15x(-2/5)=-6
(-17/8)x0=0(-2.5)2又1/3,马上采纳你(-2.5)2又1/3=-35/6