43.98乘37减439.8乘6.9加4398乘0.32要简算
43.98乘37减439.8乘6.9加4398乘0.32简便方法??
=43.98*(37-69+32)=43.98-0 =0
=43.98×(37+32-69)43.98×0 =0
=43.98*(37-69+32)=43.98-0 =0
=43.98×(37+32-69)43.98×0 =0
43.98乘37减439.8乘6.9加4398乘0.32要简算网!