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计算下列各题.23×516×35 14÷(23-16) 34×29+0.75×59 12.5%×45÷18 57÷[32×] 1321×17+8÷2117.

编辑:chaxungu时间:2026-04-27 13:18:56分类:小学数学题库

计算下列各题.(能简算的要简算)
2
3
×
5
16
×
3
5
1
4
÷(
2
3
-
1
6
)
3
4
×
2
9
+0.75×
5
9
12.5%×
4
5
÷
1
8
5
7
÷[32×(1-37.5%)]
13
21
×17+8÷
21
17
.

(1)
2
3
×
5
16
×
3
5
,
=
2
3
×
3
5
×
5
16
,
=
2
5
×
5
16
,
=
1
8
;

(2)
1
4
÷(
2
3
-
1
6
),
=
1
4
÷
1
2
,
=
1
2
;

(3)
3
4
×
2
9
+0.75×
5
9
,
=
3
4
×
2
9
+
3
4
×
5
9
,
=(
2
9
+
5
9
)×
3
4
,
=
7
9
×
3
4
,
=
7
12
;

(4)12.5%×
4
5
÷
1
8
,
=12.5%÷
1
8
×
4
5
,
=1×
4
5
,
=
4
5
;

(5)
5
7
÷[32×(1-37.5%)],
=
5
7
÷[32×0.625],
=
5
7
÷20,
=
1
28
;

(6)
13
21
×17+8÷
21
17
,
=
17
21
×13+8×
17
21
,
=
17
21
×(13+8),
=
17
21
×21,
=17.