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计算.(能应简便方法的要用简便方法) (1)59×15×35÷215 (2)27×56+16×27 (3)[12-(34-35)]÷710 (4)12×(23+34)+5.

编辑:chaxungu时间:2026-04-27 13:18:54分类:小学数学题库

计算.(能应简便方法的要用简便方法)
(1)
5
9
×
1
5
×
3
5
÷
2
15
(2)27×
5
6
+
1
6
×27
(3)[
1
2
-(
3
4
-
3
5
)]÷
7
10
(4)12×(
2
3
+
3
4
)+5.

(1)
5
9
×
1
5
×
3
5
÷
2
15
,
=
5
9
×
1
5
×
3
5
×
15
2
,
=(
5
9
×
1
5
)×(
3
5
×
15
2
),
=
1
9
×
9
2
,
=
1
2
;

(2)27×
5
6
+
1
6
×27,
=27×(
5
6
+
1
6
),
=27×1,
=27;

(3)[
1
2
-(
3
4
-
3
5
)]÷
7
10
,
=[
1
2
-
3
20
]÷
7
10
,
=
7
20
÷
7
10
,
=
1
2
;

(4)12×(
2
3
+
3
4
)+5,
=12×
2
3
+12×
3
4
+5,
=8+9+5,
=17+5,
=22.