您现在的位置是:首页 > 学科知识查询 > 小学数学题库

脱式计算.能简算的要简算.(1)0.95×27+57×0.95(2)519-1317-417+1419(3)10000÷25÷8÷4 (4)59+79-1.625-2.375+3.

编辑:chaxungu时间:2026-04-27 13:18:17分类:小学数学题库

脱式计算,能简算的要简算.
(1)0.95×
2
7
+
5
7
×0.95
(2)
5
19
-
13
17
-
4
17
+
14
19

(3)10000÷25÷8÷4
(4)
5
9
+
7
9
-1.625-2.375+3.
(1)0.95×
2
7
+
5
7
×0.95,
=0.95×(
2
7
+
5
7
),
=0.95;

(2)
5
19
-
13
17
-
4
17
+
14
19
,
=(
5
19
+
14
19
)-(
13
17
+
4
17
),
=1-1,
=0;

(3)10000÷25÷8÷4,
=10000÷(25×8×4),
=10000÷800,
=12.5;

(4)
5
9
+
7
9
-1.625-2.375+3,
=(
5
9
+
7
9
+3)-(1.625+2.375),
=4
1
3
-4,
=
1
3
.