问题
解答题
|
答案
(1)
×5.6+3 5
×5.6,2 5
=(
+3 5
)×5.6,2 5
=1×5.6,
=5.6;
(2)
÷(0.8+1 4
)+0.75,1 5
=0.25÷(0.8+0.2)+0.75,
=0.25÷1+0.75,
=0.25+0.75,
=1;
(3)2.4×[(3.6+1.4)÷
],5 6
=2.4×(5÷
),5 6
=2.4×6,
=14.4;
(4)
÷5 14
÷9,5 7
=
×5 14
×7 5
,1 9
=
.1 18