7.1-1.7= 1.45×0.2= 2.5÷50= 0.69÷2.3=
0÷0.001= 0.25×0.04= 1.2×0.01= 3.01+0.9=
34.2×100= 2.2÷0.11= 0.24×0.5= 48.16÷16=