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计算.能简算的要简算.(1)46.7-15.03-4.97 (2)709-4832÷16(3)(19+127)÷4+2723 (4)23×[910+(716-14)].

编辑:chaxungu时间:2026-04-27 13:21:15分类:小学数学题库

计算,能简算的要简算.
(1)46.7-15.03-4.97
(2)709-4832÷16
(3)(
1
9
+
1
27
)÷4+
27
23

(4)
2
3
×[
9
10
+(
7
16
-
1
4
)].(1)46.7-15.03-4.97
=46.7-(15.03+4.97),
=46.7-20,
=26.7;

(2)709-4832÷16
=709-4832÷(8×2),
=709-4832÷8÷2,
=709-604÷2,
=709-302,
=407;

(3)(
1
9
+
1
27
)÷4+
27
23

=
4
27
÷4+
27
23
,
=
1
27
+
27
23
,
=1
131
621
;

(4)
2
3
×[
9
10
+(
7
16
-
1
4
)]
=
2
3
×[
9
10
+
3
16
],
=
2
3
×
9
10
+
2
3
×
3
16
,
=
3
5
+
1
8
,
=
29
40
.