题目内容

脱式计算,能简算的要简算.
(1)(125+8)×8
(2)25×13×4(3)18.8-4.125-5.875
(4)
3
5
×
11
10
+
2
5
÷
10
11
(5)[1-(
1
2
-
1
4
)]×
2
3
(6)
5
8
-
1
4
×(
8
9
÷
4
3
)
.
(1)(125+8)×8,
=125×8+8×8,
=1000+64,
=1064;

(2)25×13×4,
=25×4×13,
=100×13,
=1300;
(3)18.8-4.125-5.875,
=18.8-(4.125+5.875),
=18.8-10,
=8.8;

(4)
3
5
×
11
10
+
2
5
÷
10
11
,
=
3
5
×
11
10
+
2
5
×
11
10
,
=(
3
5
+
2
5
)×
11
10
,
=
11
10
;

(5)[1-(
1
2
-
1
4
)]×
2
3
,
=[1-
1
4
]×
2
3
,
=
3
4
×
2
3
,
=
1
2
;

(6)
5
8
-
1
4
×(
8
9
÷
4
3
)
,
=
5
8
-
1
4
×(
8
9
×
3
4
)
,
=
5
8
-
1
4
×
2
3
,
=
5
8
-
1
6
,
=
15
24
-
4
24
,
=
11
24
.
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