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0.25×8= 31.6×0.1= 4.9×2.9≈ 9.93×5≈
2.4÷2 = 48÷0.6= 0.056÷0.8= 0.45÷0.3=
136×0.9136 1.95×0.80.8 3.35×1.0118÷6.1
进入组卷