5.46-1.79+6.54-8.21 简便计算4.71-(1.6+17.1)简便计算0.25×12.5×320 简便计
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5.46-1.79+6.54-8.21 简便计算4.71-(1.6+17.1)简便计算0.25×12.5×320 简便计算我只是想确认一下.
![5.46-1.79+6.54-8.21 简便计算4.71-(1.6+17.1)简便计算0.25×12.5×320 简便计](/uploads/image/z/5395358-38-8.jpg?t=5.46-1.79%2B6.54-8.21+%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%974.71-%281.6%2B17.1%29%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%970.25%C3%9712.5%C3%97320+%E7%AE%80%E4%BE%BF%E8%AE%A1)
5.46-1.79+6.54-8.21
=(5.46+6.54)-(1.79+8.21)
=12-10
=2
4.71-(1.6+17.1)
=4.71-18.71+0.01
=-14+0.01
=-13.99
0.25×12.5×320
=0.25*4*12.5*80
=1000
=(5.46+6.54)-(1.79+8.21)
=12-10
=2
4.71-(1.6+17.1)
=4.71-18.71+0.01
=-14+0.01
=-13.99
0.25×12.5×320
=0.25*4*12.5*80
=1000