0.94x2.5一0.45的简便算法
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解决时间 2021-04-20 02:40
- 提问者网友:骨子里的高雅
- 2021-04-19 09:35
0.94x2.5一0.45的简便算法
最佳答案
- 五星知识达人网友:胯下狙击手
- 2021-04-19 10:20
0.94*2.5-0.45
=0.94*2+0.94*0.5-0.45
=1.88+0.47-0.45
=1.88+0.02
=1.9
或
0.94*2.5-0.45
=0.5(0.94*5-0.9)
=0.5*(0.47*2*5-0.9)
=0.5*(4.7-0.9)
=0.5*3.8
=1.9
=0.94*2+0.94*0.5-0.45
=1.88+0.47-0.45
=1.88+0.02
=1.9
或
0.94*2.5-0.45
=0.5(0.94*5-0.9)
=0.5*(0.47*2*5-0.9)
=0.5*(4.7-0.9)
=0.5*3.8
=1.9
全部回答
- 1楼网友:猎心人
- 2021-04-19 12:43
原式=(0.9+0.04)*2.5-0.45=0.9*2.5+0.1-0.45=(1-0.1)*2.5-0.35=2.5-0.25-0.35=2.5-0.6=1.9
- 2楼网友:迷人又混蛋
- 2021-04-19 12:00
0.94x2.5一0.45= (1-0.06)x2.5一0.45=2.5-0.06x10/4一0.45
=2.5-0.3/2一0.45=2.5-0.15-0.45=2.5-0.6=1.9
=2.5-0.3/2一0.45=2.5-0.15-0.45=2.5-0.6=1.9
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