4.96×1.02 4.96 3.75×48 37.5×4.8 9.81÷0.9 9.81÷1.1
0.730.73434…… 1÷0.3
2.45×0.980.98 1.24÷0.51.24 6.35÷1.016.35
3.6×3.6 1.76÷0.171.76
-3.9-2.8 0.6×÷