2.4×5= 0.22×5= 1-0.85= 2.3×4.1+5.7=
22.6-3.4-2.6= 12÷0.01 = 0÷0.42= 2.4a+6a=
0.85+0.25= 0.1×0.1+0.1×0.1=
1.05×2= 0.13×4= 0.27×0.3= 1.05×2= 7.5×40=
2.5×0.2= 100÷80= 9.9-0.3= 0.48÷1.2= 3÷0.05=
15.6-6.03÷0.67 7.2×17.3+2.7×7.2 0.64×101