0.63x7.5+3.5x0.75用简便方法？？
答案:5 悬赏:20 手机版
解决时间 2021-01-18 08:19
- 提问者网友：战皆罪
- 2021-01-17 21:53
0.63x7.5+3.5x0.75用简便方法？？
最佳答案
- 五星知识达人网友：持酒劝斜阳
- 2021-01-17 22:28
0.63x7.5+3.5x0.75
=6.3*0.75+3.5*0.75
=(6.3+3.5)*0.75
=9.8*0.75
=(10-0.2)*0.75
=7.5-0.2*0.75
=7.5-0.15
=7.35
=6.3*0.75+3.5*0.75
=(6.3+3.5)*0.75
=9.8*0.75
=(10-0.2)*0.75
=7.5-0.2*0.75
=7.5-0.15
=7.35
全部回答
- 1楼网友：春色三分
- 2021-01-18 01:06
追答
第二个
- 2楼网友：摆渡翁
- 2021-01-18 00:56
（6.3+3.5）*0.75=7.35
- 3楼网友：往事隔山水
- 2021-01-18 00:01
6.3*0.75+3.5*0.75=（6.3+3.5）*0.75=9.8*0.75=（10-0.2）*0.75=7.5-0.15=7.35
- 4楼网友：有你哪都是故乡
- 2021-01-17 22:36
=6.3×0.75+3.5×0.75
=（6.3+3.5）×0.75
=10×0.75
=7.5
=（6.3+3.5）×0.75
=10×0.75
=7.5
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