用自己喜欢的方式计算下列各题．
5.8×6.7+6.7×4.2 9.9×10.1 4.8÷0.12÷4 50﹣20.8÷2.6．
脱式计算（能简算的要简算，没简算的不给分）．
1.6×55.4﹣55.4×0.6﹣55.4
17.68÷5.2+2.7×1.5
4.8×0.25．
计算，能简算的要简算．
3.25×0.45+6.75×0.45 7.5×102 5.64÷0.125÷8
26.9×0.48÷2.695.4×2.5×0.739.5×99+39.5．
怎样简便怎样算．
7.28﹣（0.8+3.28）3.15+1.83+6.85+2.1713.86﹣2.99
13.92﹣（3.92﹣2.74）2.72﹣3.98+5.28﹣2.020.27﹣4.9+4.83+2.9．
计算下面各题，能简算的要简算．
10﹣3.57﹣5.4334.82﹣（3.82+15.2） 5.86﹣0.78+0.22 63.7﹣2.36﹣13.7﹣5.64．
4.5×0.6÷0.03×1.5．