8÷10= 10﹣1.8﹣7.2= 0.43+3.57= 2.5×4×12=
0.9×0.8= 7.28×99+7.28= 4.3×50×0.2= 7.5x﹣3x=
a+3a+7a= 1.05×100= 1÷0.5= 0.96÷3=
1.47÷0.7= 5.4÷6= 8.8×0.1=
8÷10= 10﹣1.8﹣7.2= 0.43+3.57= 2.5×4×12=
0.9×0.8= 7.28×99+7.28= 4.3×50×0.2= 7.5x﹣3x=
a+3a+7a= 1.05×100= 1÷0.5= 0.96÷3=
1.47÷0.7= 5.4÷6= 8.8×0.1=