0.35×0.990.35 3.6÷0.93.6 7.2÷0.57.2×0.5
7.14÷1.27.14 3.87×1.023.87 4.8×104.8÷0.1
25.6÷0.25÷4 (3.2+0.56)÷0.8
20.16÷1.5÷2.4 (2.3÷0.46-4.5)÷0.25