简算:96又5/8-99.32+3又3/8-68%96又5/8-99.32+3又3/8-68%3.87×2/3-0.87÷1.5+2/3[100×(9.05+0.905)]×(2.5×0.4-1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/03/29 05:15:12
简算:96又5/8-99.32+3又3/8-68%96又5/8-99.32+3又3/8-68%3.87×2/3-0.87÷1.5+2/3[100×(9.05+0.905)]×(2.5×0.4-1)

简算:96又5/8-99.32+3又3/8-68%96又5/8-99.32+3又3/8-68%3.87×2/3-0.87÷1.5+2/3[100×(9.05+0.905)]×(2.5×0.4-1)
简算:96又5/8-99.32+3又3/8-68%
96又5/8-99.32+3又3/8-68%
3.87×2/3-0.87÷1.5+2/3
[100×(9.05+0.905)]×(2.5×0.4-1)

简算:96又5/8-99.32+3又3/8-68%96又5/8-99.32+3又3/8-68%3.87×2/3-0.87÷1.5+2/3[100×(9.05+0.905)]×(2.5×0.4-1)
96又5/8-99.32+3又3/8-68%
=96+3+5/8+3/8-99.32-0.68
=99+1-(99.32+0.68)
=100-100
=0
3.87×2/3-0.87÷1.5+2/3
=3.87*2/3-0.87*2/3-2/3
=(3.87-0.87+1)*2/3
=4/2/3
=8/3
[100×(9.05+0.905)]×(2.5×0.4-1)
=【100*(9.05+0.905)】*0
=0

1.96又5/8-99.32+3又3/8-68%=96-99+3+5/8-0.32+3/8-0.68=0;
2.3.87×2/3-0.87÷1.5+2/3=3.87×2/3-0.87×2/3+2/3=3.87×2/3-(0.87-1)×2/3=8/3;
3.0.

96又5/8-99.32+3又3/8-68%
=96又5/8+3又3/8-99.32-0.68
=100-(99.32+0.68)
=100
这个是交换律↑
3.87*2/3-0.87÷1.5+2/3
=3.87*2/3-0.87÷3/2+1*2/3
=3.87*2/3-0.87*2/3+1*2/3
=2/3*(3.87-0.87+1...

全部展开

96又5/8-99.32+3又3/8-68%
=96又5/8+3又3/8-99.32-0.68
=100-(99.32+0.68)
=100
这个是交换律↑
3.87*2/3-0.87÷1.5+2/3
=3.87*2/3-0.87÷3/2+1*2/3
=3.87*2/3-0.87*2/3+1*2/3
=2/3*(3.87-0.87+1)
=2/3*4
=3/8
这个是结合律↑
【100*(9.05+0.905)】*(2.5*0.4-1)
=【100*(9.05+0.905)】*0
=0
这个是数的性质:任何数*0=0

收起

96又5/8-99.32+3又3/8-68%
=96+3+5/8+3/8-99.32-0.68
=99+1-(99.32+0.68)
=100-100
=0
方法二
3.87×2/3-0.87÷1.5+2/3
=3.87*2/3-0.87*2/3-2/3
=(3.87-0.87+1)*2/3
=4/2/3
=8/3

全部展开

96又5/8-99.32+3又3/8-68%
=96+3+5/8+3/8-99.32-0.68
=99+1-(99.32+0.68)
=100-100
=0
方法二
3.87×2/3-0.87÷1.5+2/3
=3.87*2/3-0.87*2/3-2/3
=(3.87-0.87+1)*2/3
=4/2/3
=8/3
[100×(9.05+0.905)]×(2.5×0.4-1)
=【100*(9.05+0.905)】*0
=0
96又5/8-99.32+3又3/8-68%
=96又5/8+3又3/8-99.32-0.68
=100-(99.32+0.68)
=100
这个是交换律↑
3.87*2/3-0.87÷1.5+2/3
=3.87*2/3-0.87÷3/2+1*2/3
=3.87*2/3-0.87*2/3+1*2/3
=2/3*(3.87-0.87+1)
=2/3*4
=3/8
这个是结合律↑
【100*(9.05+0.905)】*(2.5*0.4-1)
=【100*(9.05+0.905)】*0
=0
这个是数的性质:任何数*0=0

收起