题目内容

计算下面各题,怎样计算简便就怎样计算.
888+999×888=
12.5×32×0.25=
3-
5
8
÷
25
28
-
3
10
=
4
5
×[
13
16
÷(
3
4
+
1
3
)]
7
15
÷[1-(
4
5
-
2
3
)]=
(1)888+999×888
=888×(999+1)
=888×1000
=888000;

(2)12.5×32×0.25
=(12.5×8)×(4×0.25)
=100×10
=1000;

(3)3-
5
8
÷
25
28
-
3
10

=3-(
7
10
+
3
10

=3-1
=2;

(4)
4
5
×[
13
16
÷(
3
4
+
1
3
)]
=
4
5
×[
13
16
÷
5
6
]
=
4
5
×
39
40

=
39
50


(5)
7
15
÷[1-(
4
5
-
2
3
)]
=
7
15
÷[1-
2
15
]
=
7
15
÷
13
15

=
7
13
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