4.09×0.94.09 2÷4.52÷5.4 40.9÷0.2540.9×0.25
0.58÷0.990.58 6.3÷0.16.3×10 9.6×0.980.96×98
0.64÷0.32= 0.7×1.2= 40×0.25= 2.9÷2.9=
0.24÷0.6= 1.8×0.3= 24.48÷24= 0.29×0.07=
①6.32÷2.5÷0.4
②7.52×0.65÷0.752
③1.25×(0.8+10)
④28.4×99+28.4
⑤[10-(6+3.03)]×1.01
⑥11.5÷(3.12+1.48)