-
最佳答案:1.(5.5+6.8×0.65)÷2.52.8.12× 6.8÷0.12×12.83.(3.2×1.5+2.5)÷1.64.5.38+7.85-5.375.17
-
最佳答案:1.59÷80.45=0.0165.79÷3.38=19.4687.28×36.43=3180.1086.78÷89.71=0.9663.20÷1.54=40.