0.25××4=0.25××0.87
5.26×1.055.26 1.26÷0.981.26
0.68×0.680.68 36.5÷1.236.5
1.2×4= 0.8×0.25= 7.2÷0.09= 3.9×0.01=
0.63÷0.9= 10÷0.5= 3.5×0.2= 0.99÷0.1=