67*1/4+2又1/2*3.75-4又1、2*25% 简便运算哦!67*1/4+2又1/2*3.75-4又1/2*25%刚刚打错了,现在改过来了哦!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 19:55:17
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67*1/4+2又1/2*3.75-4又1、2*25% 简便运算哦!67*1/4+2又1/2*3.75-4又1/2*25%刚刚打错了,现在改过来了哦!
67*1/4+2又1/2*3.75-4又1、2*25% 简便运算哦!
67*1/4+2又1/2*3.75-4又1/2*25%刚刚打错了,现在改过来了哦!
67*1/4+2又1/2*3.75-4又1、2*25% 简便运算哦!67*1/4+2又1/2*3.75-4又1/2*25%刚刚打错了,现在改过来了哦!
67*1/4+2又1/2*3.75-4又1/2*25%
=67*0.25+0.25*37.5-4.5*0.25
=0.25*(67+37.5-4.5)
=0.25*100
=25
原式=67/4+10/4-18/4*1/4
=134/8+20/8-9/8
=163/8
1
67×1/4+2又1/2×3.75-4又1/2×25%
=33.5+9.375-1.125
=42.875-1.125
=41.75