问题 解答题 用坚式计算.(带△的要验算)0.92×0.8=4.8×15=△0.623×0.42=5.04÷6=210.6÷6.5=△18÷0.75= 答案 0.92×0.8=0.736,4.8×15=72,0.623×0.42=0.26166,验算:5.04÷6=0.84,210.6÷6.5=32.4,18÷0.75=24.验算: