问题
填空题
计算:
(2.25÷0.375×-0.3×2)÷(2.3×0.25+0.27×2.5)=______.
答案
(2.25÷0.375×-0.3×2)÷(2.3×0.25+0.27×2.5),
=(
×9 4
-0.6)÷(2.3×0.25+2.7×0.25),8 3
=5.4÷(5×
),1 4
=
×27 5
,4 5
=
,108 25
=4
;8 25
故答案为:4
.8 25