10÷0.5= 3.5×0.2= 0.63÷0.9= 3.9×0.01=
1.2×5= 1.8×4= 2.33×1= 1.25×0.8=
4.7+53= 1÷0.01= 0.99÷0.01= 50×1.77×0.2=
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