0.75＋4.25= 4.2×5= 4.7＋2.3= 6－3.4=0.75×100= 5.6÷100= 2.5×4= 10－9.25=0.06×1.5= 0.3÷0.5= 0.7×0.8= 1＋0.01=0.1÷0.01= 2.1÷0.7= 1－0.34= 0.175＋0.0225=8×0.125= 5.6＋3.8= 0.62－0.32= 0.02×0.5=...