10.88除以1.7减2.5的简便方法？
10.88除以1.7减2.5的简便方法?
＝10.88/（1.7x6.4÷6.4）-2.5 ＝10.88/（10.88÷6.4）-2.5 ＝10.88x6.4/10.88-2.5 ＝6.4-2.4 ＝3.9
1.7×什么等于10.88?
10.88÷1.7=6.4
...1.7要简便 3.91/(22 - 19.7) (6 - 10.88/3.2)*1.5
1﹚0.4×5／0.4×5 =0.4×5÷0.4÷5 =1 2﹚2.65×1.7+8.35×1.7-1.7 =﹙2.65+8.35-1﹚×1.7 =10×1.7 =17 3﹚3.91／﹙22-19.7﹚=3...