问题
解答题
|
答案
(1)2010-48×14÷32,
=2010-672÷32,
=2010-21,
=1989;
(2)5.58-1.77-1.23,
=5.58-(1.77+1.23),
=5.58-3,
=2.58;
(3)[1-(
-1 2
)]×1 9
,9 26
=[1-
]×7 18
,9 26
=
×11 18
,9 26
=
;11 52
(4)
+(9 16
-7 16
)÷1 4
,1 2
=
+9 16
÷3 16
,1 2
=
+9 16
,6 16
=
;15 16
(5)973×99+973,
=973×(99+1),
=973×100,
=97300;
(6)36×(
+1 12
-1 9
),1 24
=36×
+36×1 12
-36×1 9
,1 24
=3+4-
,3 2
=7-
,3 2
=5
.1 2