你认为怎样算简便就怎样算.①(23-34×25)÷16×6②99÷13×26÷33③6.25×5.7-1.6×6.25+5.9×6.25④

2025-02-23 05:48:21
推荐回答(1个)
回答1:

①(
2
3
-
3
4
×
2
5
)÷
1
6
×6,
=(
2
3
-
3
10
)÷
1
6
×6,
=
11
30
×6×6,
=
11
5
×6,
=
66
5


②99÷13×26÷33,
=(99÷33)×(26÷13),
=3×2,
=6;

③6.25×5.7-1.6×6.25+5.9×6.25,
=6.25×(5.7-1.6+5.9),
=6.25×10,
=62.5;

④(
3
4
+
12
25
)+(
3
4
-
8
21
)-(
12
25
+
13
21
),
=
3
4
+
12
25
+
3
4
-
8
21
-
12
25
-
13
21

=(
3
4
+
3
4
)+(
12
25
-
12
25
)-(
8
21
+
13
21
),
=
3
2
+0-1,
=