数学学霸。写一下写出过程来。 (-1.2)x0.5=-6 (-0.01)x(-3.2)=0
答案:3 悬赏:0 手机版
解决时间 2021-11-10 09:48
- 提问者网友:留有余香
- 2021-11-10 06:40
数学学霸。写一下写出过程来。 (-1.2)x0.5=-6 (-0.01)x(-3.2)=0
最佳答案
- 五星知识达人网友:胯下狙击手
- 2021-11-10 07:38
(-1.2)x0.5
=-1.2×0.5
=-6
(-0.01)x(-3.2)
=0.01×3.2
=0.032
(-3/4)x(+2/3)
=-1/2
(-0.25)x(1又3/5)
=0.25×8/5
=1/4×8/5
=2/5
1/2x(-1)
=-1/2×1
=-1/2
(-5)x(-1)
=5×1
=5
先判定符号,再讲乘除运算。
=-1.2×0.5
=-6
(-0.01)x(-3.2)
=0.01×3.2
=0.032
(-3/4)x(+2/3)
=-1/2
(-0.25)x(1又3/5)
=0.25×8/5
=1/4×8/5
=2/5
1/2x(-1)
=-1/2×1
=-1/2
(-5)x(-1)
=5×1
=5
先判定符号,再讲乘除运算。
全部回答
- 1楼网友:北方的南先生
- 2021-11-10 08:49
符号,同号的正,异号得负
- 2楼网友:神的生死簿
- 2021-11-10 08:36
(-1.2)x0.5
=-(1.2x0.5)
=-6
(-0.01)x(-3.2)
=0.01x3.2
=0.032(负负得正)
=-(1.2x0.5)
=-6
(-0.01)x(-3.2)
=0.01x3.2
=0.032(负负得正)
我要举报
如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息,可以点下面链接进行举报!
大家都在看
推荐资讯