0.63×2=1.264.8÷0.6=81.7+3=4.74×9×0.25= 9 1.25×16=209.6÷32= 0.32－0.09=1.918.5－0.24－1.76=6.56.3+7= 13.321.5+9.5= 312.5×0.4= 1 ...