问题
解答题
递等式计算:
|
答案
(1)360-225÷15×18,
=360-15×18,
=360-270,
=90;
(2)
÷3 5
×5 6
,8 15
=
×18 25
,8 15
=
;48 125
(3)4.72-1.16-2.84,
=4.72-(1.16+2.84),
=4.72-4,
=0.72;
(4)
+1 9
÷1 8
+3 4
,8 9
=
+1 9
+1 6
,8 9
=
+1 9
+8 9
,1 6
=1+
,1 6
=1
.1 6