(-4)×(-5)×0.25===100×(-3)×(-5)×0.01===2.25×(-2.3)×3/25===(-2.1)×6.5×(-3/7)===
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 21:35:26
![(-4)×(-5)×0.25===100×(-3)×(-5)×0.01===2.25×(-2.3)×3/25===(-2.1)×6.5×(-3/7)===](/uploads/image/z/8548016-32-6.jpg?t=%EF%BC%88-4%EF%BC%89%C3%97%EF%BC%88-5%EF%BC%89%C3%970.25%3D%3D%3D100%C3%97%EF%BC%88-3%EF%BC%89%C3%97%EF%BC%88-5%EF%BC%89%C3%970.01%3D%3D%3D2.25%C3%97%EF%BC%88-2.3%EF%BC%89%C3%973%2F25%3D%3D%3D%28-2.1%29%C3%976.5%C3%97%EF%BC%88-3%2F7%29%3D%3D%3D)
xRN@|Sm/@P@n EEH~ew>DMj2sf粫C]3(/-ٳ/ɪhp
G"XX%(x±鹰kzg[r67
\!RѺT =+W6tYժErC<քftlێ=bc@5:6
(-4)×(-5)×0.25===100×(-3)×(-5)×0.01===2.25×(-2.3)×3/25===(-2.1)×6.5×(-3/7)===
(-4)×(-5)×0.25
=
=
=
100×(-3)×(-5)×0.01
=
=
=
2.25×(-2.3)×3/25
=
=
=
(-2.1)×6.5×(-3/7)
=
=
=
(-4)×(-5)×0.25===100×(-3)×(-5)×0.01===2.25×(-2.3)×3/25===(-2.1)×6.5×(-3/7)===
(-4)×(-5)×0.25=20×0.25=5
100×(-3)×(-5)×0.01=-300×-5×0.01=1500×0.01=15
其余的你可以根据上面这个做法做一下.慢慢做,主要是会步骤,结果错不重要,重要是会做.可以翻下书,你会做得比姐姐厉害的,呵呵!
(-4)×(-5)×0.25
=20 * 0.25
=5
连乘或者除的首先确定正负,然后一个一个计算
小朋友,我相信这些你都能自己完成,加油!