5.62+6.2÷2.5简便方法?
1个回答
展开全部
5.62+6.2÷2.5
=5.62+(62/10)/(25/10)
=5.62+(62/10)×(10/25)
=5.62+(62×10)/(25×10)
=5.62+62/25
=5.62+(62×4)/(25×4)
=5.62+[(60+2)×4]/[(20+5)×4]
=5.62+(60×4+2×4)/(20×4+5×4)
=5.62+(240+8)/(80+20)
=5.62+248/100
=5.62+2.48
=(5+0.6+0.02)+(2+0.4+0.08)
=5+0.6+0.02+2+0.4+0.08
=(5+2)+(0.6+0.4)+(0.02+0.08)
=7+1+0.1
=8+0.1
=8.1
=5.62+(62/10)/(25/10)
=5.62+(62/10)×(10/25)
=5.62+(62×10)/(25×10)
=5.62+62/25
=5.62+(62×4)/(25×4)
=5.62+[(60+2)×4]/[(20+5)×4]
=5.62+(60×4+2×4)/(20×4+5×4)
=5.62+(240+8)/(80+20)
=5.62+248/100
=5.62+2.48
=(5+0.6+0.02)+(2+0.4+0.08)
=5+0.6+0.02+2+0.4+0.08
=(5+2)+(0.6+0.4)+(0.02+0.08)
=7+1+0.1
=8+0.1
=8.1
广州中仪测绘
2023-08-25 广告
2023-08-25 广告
作为广州中仪测绘科技有限公司的工作人员,我回答如下:使用工程计算器需要遵循一定的步骤和技巧。首先,打开计算器后,根据需要设置计算器的模式,例如科学模式或程序员模式。然后,根据所进行的工程计算需求,输入相应的数值和运算符号。例如,在计算土方量...
点击进入详情页
本回答由广州中仪测绘提供
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询