以下是简便计算的题目,(能简便计算就简便计算)还有两个解方程,所有的计算要有过程.
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以下是简便计算的题目,(能简便计算就简便计算)还有两个解方程,所有的计算要有过程.
56×75%—46×3/4 8×75%—3÷3/4 8.5×0.75+7.5×75% 101×0.375—37.5% 3/5÷60%×(3/4+1/2) 5/8—5/6×(1/4+25%)(都要有过程) 解方程:X—15%X=8.5 10+15%X=17.5
56×75%—46×3/4 8×75%—3÷3/4 8.5×0.75+7.5×75% 101×0.375—37.5% 3/5÷60%×(3/4+1/2) 5/8—5/6×(1/4+25%)(都要有过程) 解方程:X—15%X=8.5 10+15%X=17.5
![以下是简便计算的题目,(能简便计算就简便计算)还有两个解方程,所有的计算要有过程.](/uploads/image/z/16476241-49-1.jpg?t=%E4%BB%A5%E4%B8%8B%E6%98%AF%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E7%9A%84%E9%A2%98%E7%9B%AE%2C%EF%BC%88%E8%83%BD%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E5%B0%B1%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%89%E8%BF%98%E6%9C%89%E4%B8%A4%E4%B8%AA%E8%A7%A3%E6%96%B9%E7%A8%8B%2C%E6%89%80%E6%9C%89%E7%9A%84%E8%AE%A1%E7%AE%97%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B.)
56×75%—46×3/4
=(56-46)X75%
=7.5
8×75%—3÷3/4
=6-4
=2
8.5×0.75+7.5×75%
=(8.5+7.5)X0.75
=12
101×0.375—37.5%
=(101-1)X0.375
=37.5
3/5÷60%×(3/4+1/2)
=1X1.25
=1.25
5/8—5/6×(1/4+25%)(都要有过程)
=5/8-5/12
=5/24
解方程:X—15%X=8.5
0.85X=8.5
X=10
10+15%X=17.5
0.15X=7.5
X=50
=(56-46)X75%
=7.5
8×75%—3÷3/4
=6-4
=2
8.5×0.75+7.5×75%
=(8.5+7.5)X0.75
=12
101×0.375—37.5%
=(101-1)X0.375
=37.5
3/5÷60%×(3/4+1/2)
=1X1.25
=1.25
5/8—5/6×(1/4+25%)(都要有过程)
=5/8-5/12
=5/24
解方程:X—15%X=8.5
0.85X=8.5
X=10
10+15%X=17.5
0.15X=7.5
X=50