问题
解答题
计算下面各题.
|
答案
(1)13.5-(6.9+6.1)÷2.6,
=13.5-13÷2.6,
=13.5-5,
=8.5;
(2)15×
÷1 5
×3 2
,3 10
=3×
×2 3
,3 10
=2×
,3 10
=
;3 5
(3)573+900÷36×15,
=573+25×15,
=573+375,
=948;
(4)(
+1 4
)÷4 5
+7 4
,7 15
=
×21 20
+4 7
,7 15
=
+3 5
,7 15
=
.16 15