0.7×8=5.6 0.6×0.9=0.540.5×0.8=0.41.2×0.4=0.481.5×0.6=0.9 0.25×4=10.4×0.9=0.360.12×100=12 7.9×100=7900.42÷100=0.00423.65÷1000=0.003654.2÷0.7=67.2÷0.6=12 9.6÷0.6=160.63÷0.9=0.711÷0.1=110...