8.1÷9= 2.5×4= 6-0.025= 0.6×0.3= 2.5×2= 0.5×10= 0.6×8= 2.1×2= 8×0.125= 0.54÷0.6= 4.5-0.05= 2.6÷1.3= 2.8×10= 0.7×0.8= 0.04×20= 5.6+0.4= 10.5×0.4= 7.3+0.27= 5×0.24= 4.7+2.3= 4.5×2= 6.9-2.5=