48×52=24.96
336÷28=0.12
4.5×2.1= 0.045×210= 0.45×=0.945
5.7×1.015.7 8.4×48.4×3 8.6×1386×1.3
0.76×0.340.76 8.66×1.08.66 7.5×0.310.31×7.5
4.2÷6= 1.5﹣0.3= 1.3×6= 0.2÷0.4=
3.05+0.95= 0.75÷0.25= 0.6×55= 10÷0.1=