15.6÷24= 20.64÷3.2= ※3.09÷1.5=
0.68÷4= 10.5÷5= 0.28÷0.7= 0.24÷3=
0.6÷0.12= 0.18÷1.8= 3.2÷0.8= 6.06÷6=
4.9334.93 2.8÷0.62.8 0.45×1.050.45
12﹣3.6= 12×0.5= 36×25%= ×6+=
+= ÷4= 0××5= 28÷1.25÷8=