用简便方法计算32×9/10 9/10 67×0.9
用简便方法计算32×9/10 9/10 67×0.9
日期：2021-11-15 18:47:19 人气：1
用简便方法计算32×9/10 9/10 67×0.9
=32x0.9+0.9+67x0.9
=(32+1+67)x0.9
=100x0.9
=90
=32x0.9+0.9+67x0.9
=(32+1+67)x0.9
=100x0.9
=90
用简便方法计算32×9/10 9/10 67×0.9